Edox band size chart by model: horn-gap decoded

Edox is the brand that renamed lug width. Every product page on edox.ch prints the strap width under the label Horn-gap, sitting between Case height and Weight in the spec block: Horn-gap : 20 mm beside Diameter : 43 mm and Case height : 16.4 mm on the Grand Ocean Chronograph Automatic [2]. We pulled the entire current en-US catalog fresh at build time, all 317 product pages enumerated from the brand's own sitemap index [1], every one HTTP 200, every one printing a Horn-gap row: no other brand in this chart series labels the number so consistently, and no one had ever charted it. The strap-size databases do not carry the brand at all: watchbands.ai's index of 202 brands has no Edox entry [4], and the chart searches return only the brand's own pages, dealer strap catalogs and generic measuring guides [61][62].

Quick answer: horn-gap is lug width, the band size to buy. Edox runs ten values from 16mm to 25mm across the current catalog, and the model, not the case size, decides which. The trap: the 40mm Grand Ocean Power Reserve takes an 18.5mm band, the only 18.5mm watch Edox currently sells [3].

The decoder: what Horn-gap means and why Edox prints it

Horn-gap is the Swiss trade's literal description of what a strap buyer measures: the gap between the case horns, the two lug arms that hold the spring bars. Functionally it is identical to lug width, band width, strap width and lug-to-lug width's narrower cousin: the millimeter distance across the spring-bar axis, which is the width of the strap that fits. Edox has printed the row this way on every current product page, all 317 of them, from the 30mm Les Bemonts Ultra Slim Date at 19mm [64] to the 48mm Chronorally chronographs at 25mm [65]. The consistent label is a gift to chart builders, because nothing on the page requires interpretation: the value printed under Horn-gap is the width to buy, with one 18.5mm exception that is itself printed exactly [3].

The term is not a marketing invention; it describes the geometry. Where a brand like Circula prints Lug Width and Farer prints a Dimensions block, Edox names the mounting feature. A buyer who searches an Edox page for the word lug finds nothing, which is precisely why the generic strap guides never tabulated the brand: the data was always there, under a label nobody searched for.

The full table: 56 model rows, 317 references, 10 widths

Model rowRefsHorn-gapDiameterCase heightStrap as deliveredMovement
Grand Ocean Automatic[5]1020 mm40 mm11.9 mm7 Metal / 3 NatoAutomatic
Grand Ocean Automatic Platinum 950 LE[6]219 mm39 mm10.8 mm2 LeatherAutomatic
Grand Ocean Chronograph Automatic (20mm)[7]420 mm43 mm16.4 mm4 RubberAutomatic
Grand Ocean Chronograph Automatic (22mm)[8]522 mm43 mm12.5 mm5 RubberQuartz
Grand Ocean Date - Gents[9]620 mm42 mm11.2 mm5 Metal / 1 NatoQuartz
Grand Ocean Date - Ladies[10]920 mm33 mm11.2 mm8 Metal / 1 NatoQuartz
Grand Ocean Power Reserve Automatic[11]518.5 mm40 mm13.4 mm5 RubberAutomatic
Delfin Chronograph (current) (43mm)[12]1024 mm43 mm12.9 mm6 Rubber / 4 MetalQuartz
Delfin Chronograph (current) (43mm)[13]624 mm43 mm12 cm3 Metal / 3 RubberQuartz
Delfin Chronograph 10109 (og: Deflin Chronograph)[14]124 mm43 mm12 cm1 RubberQuartz
Delfin Date[15]224 mm43 mm10.3 mm2 MetalQuartz
Delfin Day-Date Automatic (43mm)[16]624 mm43 mm12.7 mm4 Rubber / 2 MetalAutomatic
Delfin Day-Date Automatic (43mm)[17]724 mm43 mm14.5 mm5 Rubber / 2 MetalAutomatic
Delfin Diver Date Lady[18]1520 mm38 mm11.3 mm10 Metal / 5 LeatherQuartz
Delfin Mecano Automatic[19]1324 mm43 mm12.5 mm9 Rubber / 4 MetalAutomatic
Delfin Mecano Automatic Damascus Steel LE[20]122 mm40 mm11.2 mm1 MetalAutomatic
Delfin The Original 1973 Automatic[21]820 mm41 mm12.6 mm5 Metal / 3 RubberAutomatic
Delfin The Original 1973 Chronograph[22]822 mm43 mm12.6 mm5 Metal / 3 RubberQuartz
Delfin The Original 1973 Date (16mm)[23]616 mm32 mm11.3 mm6 RubberQuartz
Delfin The Original 1973 Date (20mm)[24]820 mm41 mm11.3 mm8 RubberQuartz
Delfin The Original Chronograph[25]624 mm43 mm12.9 mm4 Rubber / 2 MetalQuartz
Delfin The Original Date (18mm)[26]518 mm33 mm10 mm5 MetalQuartz
Delfin The Original Date (20mm)[27]220 mm41 mm12.7 mm2 RubberAutomatic
Delfin The Original Date (24mm)[28]824 mm43 mm10.3 mm4 Metal / 4 RubberQuartz
CO-1 Carbon Chronograph Automatic[29]425 mm45 mm16.5 mm4 RubberAutomatic
CO-1 Chronograph[30]1525 mm45 mm15.5 mm11 Rubber / 2 Metal / 2 LeatherQuartz
CO-1 Chronograph Automatic[31]425 mm45 mm16 mm4 RubberAutomatic
CO-1 Chronolady[32]721 mm38 mm11 mm4 Rubber / 3 MetalQuartz
CO-1 Date Automatic[33]522 mm42 mm14 mm5 RubberAutomatic
Hydro-Sub Chronometer Label Noir LE[34]120 mm42 mm12.5 mm1 MetalChronometer
Hydro-Sub Date Automatic Chronometer[35]620 mm42 mm12.5 mm6 MetalChronometer
Neptunian Automatic[36]1721 mm44 mm15.6 mm10 Metal / 7 Rubbermixed
Neptunian Grande Reserve Date Automatic[37]920 mm42 mm12.3 mm5 Metal / 4 RubberAutomatic
Neptunian POP Automatic LE[38]120 mm42 mm12.3 mm1 MetalAutomatic
Chronorally Automatic[39]823 mm45 mm15.8 mm5 Rubber / 3 LeatherAutomatic
Chronorally Chronograph[40]525 mm48 mm15 mm5 RubberQuartz
Chronorally Chronograph 45[41]823 mm45 mm15 mm8 RubberQuartz
Chronorally Dominique Aegerter LE[42]125 mm48 mm15 mm1 LeatherQuartz
Chronorally Limited Edition[43]225 mm48 mm15 mm2 RubberQuartz
Chronorally X-Treme Pilot[44]325 mm48 mm15 mm2 Rubber / 1 Leathermixed
Skydiver 1967 Date Automatic[45]122 mm43 mm14 mm1 LeatherAutomatic
Skydiver 38 Date Automatic[46]720 mm38 mm13.7 mm7 MetalAutomatic
Skydiver 38 Date Automatic SE[47]720 mm38 mm13.7 mm7 LeatherAutomatic
Skydiver 70s Date Automatic[48]220 mm42 mm11.5 mm2 MetalAutomatic
Skydiver Chronograph[49]320 mm40 mm13.9 mm3 MetalQuartz
Skydiver Date Automatic LE[50]722 mm42 mm13.9 mm4 Metal / 3 LeatherAutomatic
Sportsman Chronographe Automatic[51]420 mm41 mm16.8 mm2 Leather , Metal / 2 MetalAutomatic
Les Bemonts C.R.-F. LE[52]122 mm44 mm10.8 mm1 LeatherAutomatic
Les Bemonts Ultra Slim Chronograph[53]525 mm42 mm9.1 mm5 MetalQuartz
Les Bemonts Ultra Slim Date (19mm)[54]519 mm30 mm6.1 mm5 MetalQuartz
Les Bemonts Ultra Slim Date (25mm)[55]525 mm40 mm6.2 mm5 MetalQuartz
Les Vauberts Annual Calendar[56]422 mm42 mm10.4 mm4 LeatherQuartz
Les Vauberts Chronograph Date[57]522 mm42 mm10.6 mm5 LeatherQuartz
Les Vauberts Open Heart Automatic (19mm)[58]419 mm43 mm9.5 mm4 LeatherAutomatic
Les Vauberts Open Heart Automatic (22mm)[59]722 mm43 mm9.4 mm5 Leather / 2 MetalAutomatic
North Sea 1978 Date Automatic[60]122 mm43 mm14 mm1 LeatherAutomatic

Every horn-gap, diameter and case-height cell above is the verbatim string from the row's own product-page spec block on a fresh en-US pull at build time; each row cites the representative page it was derived from, and rows are split wherever the family prints more than one signature, so no row mixes values. The en-US rail is the unprefixed URL form, edox.ch/product/<slug>, which the pages themselves declare as hreflang en and x-default; the fr, de, es and ru variants are prefixed siblings.

The census behind the table, all 317 references: 20mm is the modal width (102 references), then 24mm (59), 22mm (45), 25mm (44), 21mm (24), 23mm (16), 19mm (11), 18.5mm (5), 18mm (5) and 16mm (6). Ten widths on one brand is the widest spread in this chart series, and the spread does not follow case size: Edox sells 40mm watches at 18.5, 20, 22 and 25mm, and 43mm watches at 20, 22 and 24mm.

The 18.5mm trap: Grand Ocean Power Reserve

The pass-through trap of this catalog: the Grand Ocean Power Reserve Automatic, a 40mm watch in the brand's signature dress-diver line, prints Horn-gap : 18.5 mm on all five current references (94500 family) [3]. Every other Grand Ocean 40mm, the plain Automatic on its steel or NATO strap, prints 20mm [66]. Half a millimeter is invisible on the wrist and fatal at the spring bar: an 18mm strap slops, a 19mm strap will not seat. The half-width also exists in the trade's own inventory at nearly zero depth; the official-dealer strap filter census at build time carried exactly one 18.5mm Edox strap against dozens each of 20, 22 and 24mm [63]. Owners of this exact model are the reason this row gets its own section: it is the one current Edox where buying by case-size intuition fails.

Same name, different band: the family splits that matter

The table splits rows wherever the spec block does, and three splits carry most of the buying risk. The Grand Ocean Chronograph is two watches under one name: the 43mm automatic on a 20mm horn-gap at 16.4mm thick [2], and the 43mm quartz on a 22mm horn-gap at 12.5mm [67]; the reference number decides (09800 automatic, 10248 quartz). The Delfin The Original Date runs three case widths: 43mm on 24mm, 41mm on 20mm and the 33mm ladies on 18mm [68]. And the Les Vauberts Open Heart Automatic splits inside one 43mm case: 22mm horn-gap on the steel-strap references at 9.4mm thick, 19mm on the leather references at 9.5mm [69]. In each case the split is printed, not inferred; the row cites the page that prints it.

Two more quirks are quoted exactly as the bytes come back. Seven Delfin Chronograph references print Case height : 12 cm, a unit typo on a 43mm watch that is plainly 12mm, carried here as printed and flagged rather than corrected [70]; their sibling references in the same family print 12.9mm. And one Delfin Chronograph page titles itself Deflin Chronograph and one slug reads vinatge, brand typos preserved on the live site and in this table's labels only where the og title feeds them [71].

How this catalog was counted

The edox.ch sitemap index carries 11 child sitemaps [1]; the three product sitemaps hold 2,307 raw locs across five locales, which deduplicate to 317 unique en-US product URLs (the unprefixed /product/ form; the fr, de, es and ru prefixed forms are the same watches). All 317 pages were pulled fresh en-US at build time, every one HTTP 200, and a regex over each spec block extracted Horn-gap, Diameter, Case height and the surrounding rows; grouping the 317 spec signatures produced the 56 deviation-free rows above, with every multi-value cell (strap as delivered, movement) carrying its own census. Pages without a printed value are flagged not printed in the row data; nothing in this table is converted, rounded or inferred.

Why no one else has this chart

The incumbent check ran at build time, two methods. watchbands.ai, the largest strap-size database, listed 202 brands with seiko, citizen and rolex all present as positive controls and no Edox entry by slug or by text [4]. The SERP sweep: Bing returned a genuine zero-organic-results page (b_no marker, no challenge wall) for the consolidated-chart queries [62], and the second-engine sweep returned first-party product pages, dealer strap catalogs and generic measuring guides only [61]. The nearest adjacent incumbents are the official-dealer parts catalogs, Mastersintime and watch.co.uk, which list replacement Edox straps by reference and width filter but publish no model-to-width chart; they are disclosed here as non-competing parts listings [63]. This page is the consolidated table, and its differentiating content is the decoder itself: horn-gap is lug width, printed first-party on all 317 pages, charted nowhere else.

Related guides

Sources

  1. edox.ch sitemap index (11 child sitemaps; product-sitemap 1-3 carry the catalog; fresh pull at build): www.edox.ch
  2. edox.ch en-US PDP: Grand Ocean Chronograph Automatic 09800, spec block verbatim (Horn-gap : 20 mm, Diameter : 43 mm, Case height : 16.4 mm; fresh pull at build): www.edox.ch
  3. edox.ch en-US PDP: Grand Ocean Power Reserve Automatic 94500, spec block verbatim (Horn-gap : 18.5 mm on a 40 mm case; fresh pull at build): www.edox.ch
  4. watchbands.ai brand index, fresh pull at build (202 brands; controls seiko, citizen, rolex present; no Edox entry by slug or text): watchbands.ai
  5. edox.ch en-US PDP: Grand Ocean Automatic (10 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  6. edox.ch en-US PDP: Grand Ocean Automatic Platinum 950 LE (2 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  7. edox.ch en-US PDP: Grand Ocean Chronograph Automatic (20mm) (4 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  8. edox.ch en-US PDP: Grand Ocean Chronograph Automatic (22mm) (5 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  9. edox.ch en-US PDP: Grand Ocean Date - Gents (6 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  10. edox.ch en-US PDP: Grand Ocean Date - Ladies (9 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  11. edox.ch en-US PDP: Grand Ocean Power Reserve Automatic (5 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  12. edox.ch en-US PDP: Delfin Chronograph (current) (43mm) (10 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  13. edox.ch en-US PDP: Delfin Chronograph (current) (43mm) (6 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  14. edox.ch en-US PDP: Delfin Chronograph 10109 (og: Deflin Chronograph) (1 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  15. edox.ch en-US PDP: Delfin Date (2 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  16. edox.ch en-US PDP: Delfin Day-Date Automatic (43mm) (6 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  17. edox.ch en-US PDP: Delfin Day-Date Automatic (43mm) (7 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  18. edox.ch en-US PDP: Delfin Diver Date Lady (15 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  19. edox.ch en-US PDP: Delfin Mecano Automatic (13 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  20. edox.ch en-US PDP: Delfin Mecano Automatic Damascus Steel LE (1 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  21. edox.ch en-US PDP: Delfin The Original 1973 Automatic (8 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  22. edox.ch en-US PDP: Delfin The Original 1973 Chronograph (8 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  23. edox.ch en-US PDP: Delfin The Original 1973 Date (16mm) (6 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  24. edox.ch en-US PDP: Delfin The Original 1973 Date (20mm) (8 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  25. edox.ch en-US PDP: Delfin The Original Chronograph (6 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  26. edox.ch en-US PDP: Delfin The Original Date (18mm) (5 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  27. edox.ch en-US PDP: Delfin The Original Date (20mm) (2 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  28. edox.ch en-US PDP: Delfin The Original Date (24mm) (8 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  29. edox.ch en-US PDP: CO-1 Carbon Chronograph Automatic (4 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  30. edox.ch en-US PDP: CO-1 Chronograph (15 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  31. edox.ch en-US PDP: CO-1 Chronograph Automatic (4 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  32. edox.ch en-US PDP: CO-1 Chronolady (7 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  33. edox.ch en-US PDP: CO-1 Date Automatic (5 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  34. edox.ch en-US PDP: Hydro-Sub Chronometer Label Noir LE (1 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  35. edox.ch en-US PDP: Hydro-Sub Date Automatic Chronometer (6 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  36. edox.ch en-US PDP: Neptunian Automatic (17 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  37. edox.ch en-US PDP: Neptunian Grande Reserve Date Automatic (9 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  38. edox.ch en-US PDP: Neptunian POP Automatic LE (1 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  39. edox.ch en-US PDP: Chronorally Automatic (8 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  40. edox.ch en-US PDP: Chronorally Chronograph (5 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  41. edox.ch en-US PDP: Chronorally Chronograph 45 (8 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  42. edox.ch en-US PDP: Chronorally Dominique Aegerter LE (1 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  43. edox.ch en-US PDP: Chronorally Limited Edition (2 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  44. edox.ch en-US PDP: Chronorally X-Treme Pilot (3 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  45. edox.ch en-US PDP: Skydiver 1967 Date Automatic (1 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  46. edox.ch en-US PDP: Skydiver 38 Date Automatic (7 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  47. edox.ch en-US PDP: Skydiver 38 Date Automatic SE (7 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  48. edox.ch en-US PDP: Skydiver 70s Date Automatic (2 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  49. edox.ch en-US PDP: Skydiver Chronograph (3 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  50. edox.ch en-US PDP: Skydiver Date Automatic LE (7 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  51. edox.ch en-US PDP: Sportsman Chronographe Automatic (4 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  52. edox.ch en-US PDP: Les Bemonts C.R.-F. LE (1 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  53. edox.ch en-US PDP: Les Bemonts Ultra Slim Chronograph (5 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  54. edox.ch en-US PDP: Les Bemonts Ultra Slim Date (19mm) (5 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  55. edox.ch en-US PDP: Les Bemonts Ultra Slim Date (25mm) (5 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  56. edox.ch en-US PDP: Les Vauberts Annual Calendar (4 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  57. edox.ch en-US PDP: Les Vauberts Chronograph Date (5 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  58. edox.ch en-US PDP: Les Vauberts Open Heart Automatic (19mm) (4 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  59. edox.ch en-US PDP: Les Vauberts Open Heart Automatic (22mm) (7 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  60. edox.ch en-US PDP: North Sea 1978 Date Automatic (1 refs incl this one; spec block verbatim; fresh pull at build): www.edox.ch
  61. Second-engine SERP sweep at build (DDG html + web_search): brand pages, dealer strap listings and generic measuring guides only; no consolidated chart: duckduckgo.com
  62. Bing search: edox band size chart (zero organic results, b_no marker, genuine no-result SERP): www.bing.com
  63. Mastersintime.com Edox strap listing (official dealer; width filter census 16-25mm with exactly one 18.5mm strap; adjacent incumbent, non-competing: parts catalog, no model-to-width chart): www.mastersintime.com
  64. edox.ch en-US PDP: Les Bemonts Ultra Slim Date 57004 (30mm case, Horn-gap : 19 mm; fresh pull at build): www.edox.ch
  65. edox.ch en-US PDP: Chronorally Limited Edition 38001 (48mm case, Horn-gap : 25 mm; fresh pull at build): www.edox.ch
  66. edox.ch en-US PDP: Grand Ocean Automatic 80140 (40mm case, Horn-gap : 20 mm; fresh pull at build): www.edox.ch
  67. edox.ch en-US PDP: Grand Ocean Chronograph 10248 quartz (43mm case, Horn-gap : 22 mm, Case height : 12.5 mm; fresh pull at build): www.edox.ch
  68. edox.ch en-US PDP: Delfin The Original Date 53021 (43mm case, Horn-gap : 24 mm; fresh pull at build): www.edox.ch
  69. edox.ch en-US PDP: Les Vauberts Open Heart Automatic 85014 (43mm case, Horn-gap : 22 mm; fresh pull at build): www.edox.ch
  70. edox.ch en-US PDP: Delfin Chronograph 10109 (prints Case height : 12 cm, unit typo carried as printed; fresh pull at build): www.edox.ch
  71. edox.ch en-US PDP: Delfin Mecano Automatic 85303 (og title prints Deflin, brand typo preserved; fresh pull at build): www.edox.ch