Nezumi band size chart by family: one width, everything else moves

Nezumi is the Stockholm brand whose whole current catalog answers the strap question with one number: every one of the 16 refs in the shop index prints Lug width: 20mm in the same specification block ^[5][7]. What actually differs family to family is everything around that number: lug-to-lug splits 47mm from 45.5mm, thickness runs 10mm to 13.3mm, and each family prints its own compound sapphire-glass string. This chart was built from nezumistudios.com itself, the shop index enumerated fresh at build time ^[1], all 16 product pages pulled, and every rail below quoted verbatim from the page that prints it. The strap question is settled in one line; the wrist question is what the rest of the table decodes.

The printed rails: all 7 signatures, all 16 refs

Every row above is the verbatim specification block from a fresh pull of that product page at build time; the second citation on each family row is the sibling check confirming every ref in the family prints the identical block (all three Aviera GMTs, both Baleines, both Corbeaus, both Terrains, both Tonnerres, both Voiture VM2s, all three Voiture VQ4s). The compound thickness strings are carried exactly as printed, spaces, parentheses and the Tonnerre comma decimal included, because those details are how you tell the families apart when the width is the same. Nothing is converted, rounded or inferred.

The decoder: what actually differs when the width does not

A Nezumi chart is not a width chart; it is a decoder of what looks different. The three dive-rated, screw-down-crown families sit at 40mm and 47mm lug-to-lug: the Aviera GMT prints Case diameter: 40mm Bezel diameter: 39mm Lug to lug: 47mm Thickness: 13.3mm (11.4 + 1.9mm sapphire glass ) Lug width: 20mm ^[5], the thickest of the catalog at 13.3mm on a Miyota 9075 Automatic GMT. The Baleine prints the same 40/39/47 numbers at 12.1mm (10.2 + 1.9mm sapphire glass) ^[7], the only family whose thickness string closes with no space before the parenthesis. Both are rated 20 ATM ( 200m / 660ft ) ^[5][6], the Aviera with a screw-down crown, the Baleine with the 120 click unidirectional rotating bezel of a dive watch.

The two 38mm families bring the half-millimetre and the comma. The Terrain field watch prints Diameter: 38mm Lug to lug: 45.5mm Thickness: 10mm ( + 1.7mm sapphire glass ) Lug width: 20mm ^[11]: a decimal-point 45.5, the thinnest case in the catalog at 10mm, a blank where the other families print a case number before the +, and 20 ATM water resistance despite the field-dress styling ^[12]. The Tonnerre chronograph prints Lug to lug: 45,5mm ^[13], the only comma decimal in the catalog, on an 11.8mm (10.4 + 1.4mm sapphire glass ) case with a Seiko VK63 mecha-quartz movement ^[13].

The chronograph pair rounds it out. The Voiture VM2 is the catalog's one automatic chronograph: Case diameter: 40mm Bezel diameter: 39mm Lug to lug: 47mm Thickness: 12.9mm (11mm + 1.9mm sapphire glass) Lug width: 20mm ^[15], on the Peacock SL-4801 automatic column-wheel chronograph movement, and the only page printing 5 ATM ( 50m / 165ft ) where its siblings print 164ft ^[16]. The Voiture VQ4 mecha-quartz chrono prints the Corbeau's exact block, Diameter: 40mm Lug to lug: 47mm Thickness: 12.75mm inc. domed crystal Lug width: 20mm ^[17], and the Corbeau itself is the family that first dropped Case from the diameter label and prints its thickness as inc. domed crystal ^[9]. Two labels for the diameter, three wordings for the thickness, one width.

The wording traps: Case diameter, Diameter, and a blank plus sign

Three traps catch anyone copying Nezumi specs by hand. First, the diameter label splits: the Aviera GMT, Baleine and Voiture VM2 print Case diameter: 40mm plus a separate Bezel diameter: 39mm ^[5][7], while the Corbeau, Terrain, Tonnerre and Voiture VQ4 print just Diameter: ^[9][11]. A 39mm number in a spec sheet is a bezel, not the case. Second, the thickness strings are not interchangeable: 12.1mm (10.2 + 1.9mm sapphire glass) on the Baleine has no space before the closing parenthesis, 13.3mm (11.4 + 1.9mm sapphire glass ) on the Aviera GMT has one, and the Corbeau and VQ4 abandon the arithmetic for 12.75mm inc. domed crystal ^[17]. Third, the Terrain's 10mm ( + 1.7mm sapphire glass ) prints a blank where every other family prints its case thickness before the plus ^[11]. None of this changes the strap. All of it changes whether a copied spec sheet is trustworthy.

The strap selector: Colin 2.2 versus Colin 2.1 on the same 20mm

Nezumi sells the straps on the watch's own product page, as a selector rather than separate SKUs, which is why the 16-ref census is the complete list. The selector names carry the compatibility story: the Colin 2.2 - Solid link bracelet appears on the Aviera GMT (10 options on AA3.102, from the Hunt black strap through the Juno canvases to the Malta FKM rubbers and the bracelet), Baleine, Corbeau, Terrain, Tonnerre and Voiture VQ4.202 ^[5], while the Voiture VQ4.101 and VQ4.601 selectors offer the Colin 2.1 - Solid link bracelet, the polished version ^[17][18]. The width is 20mm either way; the finish differs. That is the whole selector decode: any strap the brand itself hangs on any current watch is a 20mm strap.

Is there an official Nezumi band size chart?

No. The widths live in the specification block of each product page on nezumistudios.com, and no consolidated table exists anywhere on the store. watchbands.ai, the largest strap-size database, carried 205 brands at build time with no Nezumi entry ^[2]. The nearest incumbent is a lug-to-lug database whose Nezumi brand page holds exactly one watch of the 16 charted here: Nezumi has 1 watch in the database. It measures 47 mm lug-to-lug, alongside case diameters of 40 mm and thickness of 14.5 mm. Nezumi Voiture 40mm ^[3], which matches the Voiture rail on this page and nothing else. One review prints an older Baleine generation's numbers in prose, 40mm diamater 47mm lug to lug 14mm thick 20mm lugs ^[4], typo and all; it corroborates the 20mm width and dates itself with the 14mm thickness the current BA4 halves the sapphire arithmetic on. No third party tables the catalog. This page is that table.

Older Baleines and the retired generations

Nezumi has sold more watches than the 16 currently listed, and the retired generations chart at the same width. The retired Baleine URLs (the BA2 and BA2S generations) still resolve, but they soft-redirect to the shop index and print no live spec block of their own ^[19], so they are absent from the table above. What still prints their numbers is the review prose: the older Baleine Diver is listed at 40mm diamater 47mm lug to lug 14mm thick 20mm lugs ^[4], a 14mm thickness the current BA4 generation drops to 12.1mm by slimming the case to 10.2mm under its 1.9mm sapphire. The wordings moved across generations (a review of the BA2 era records the same 47mm lug-to-lug and 20mm lug width); the lug width never has. Any Baleine ever sold takes a 20mm strap.

How this catalog was counted

The nezumistudios.com shop index enumerates exactly 16 product refs on a fresh pull at build time ^[1]: three Aviera GMTs, two Baleines, two Corbeaus, two Terrains, two Tonnerres, two Voiture VM2s and three Voiture VQ4s, the URL shape a singular /product/ path on the www host. All 16 product pages were fetched fresh, and every one prints the same five-line specification block ending in Lug width: 20mm next to its family's lug-to-lug. The two domain trap was checked both ways: nezumiwatches.com is a noindex Shopify shell with no product content, while nezumistudios.com is the live WooCommerce store every quote on this page comes from. Strap options are selectors on each product page, not separate SKUs, so no watch was double-counted and none missed. Prices are excluded: the store serves euro prices with local VAT, and no price is a sizing spec. What prints is what you get, comma decimals, blank plus signs and spaces before parentheses included.

Sources

1. nezumistudios.com shop index, fresh pull at build: enumerates exactly 16 product refs across the 6 model families (Aviera GMT x3, Baleine x2, Corbeau x2, Terrain x2, Tonnerre x2, Voiture x5); the census basis for every row on this page: www.nezumistudios.com
2. watchbands.ai brand index, fresh pull at build (205 root-relative /slug hrefs, legacy /brands/ pattern returns 0; controls seiko, citizen, rolex present by slug and text; no nezumi entry): watchbands.ai
3. lugtolugfinder.com Nezumi brand page, fresh pull at build: Nezumi has 1 watch in the database. It measures 47 mm lug-to-lug, alongside case diameters of 40 mm and thickness of 14.5 mm. Nezumi Voiture 40mm 47 mm. The nearest thing to an incumbent: a lug-to-lug database that carries exactly one of the 16 watches charted here: lugtolugfinder.com
4. watchreport.com Baleine Diver review, fresh pull at build, spec block in prose: 40mm diamater 47mm lug to lug 14mm thick 20mm lugs; an older Baleine generation, cited as adjacent third-party prose, not a chart: watchreport.com
5. nezumistudios.com PDP: Aviera GMT Ref. AA3.102, fresh pull at build: Case diameter: 40mm Bezel diameter: 39mm Lug to lug: 47mm Thickness: 13.3mm (11.4 + 1.9mm sapphire glass ) Lug width: 20mm; note the space before the closing parenthesis, and Movement: Miyota 9075 Automatic GMT: www.nezumistudios.com
6. nezumistudios.com PDP: Aviera GMT sibling check, fresh pull at build: all three Aviera GMT refs (AA3.102, AA3.133, AA3.302) print the identical spec block, Miyota 9075 Automatic GMT and 20 ATM ( 200m / 660ft ): www.nezumistudios.com
7. nezumistudios.com PDP: Baleine Ref. BA4.102, fresh pull at build: Case diameter: 40mm Bezel diameter: 39mm Lug to lug: 47mm Thickness: 12.1mm (10.2 + 1.9mm sapphire glass) Lug width: 20mm; Miyota 9039 Automatic movement; the only family that prints both Case diameter and Bezel diameter with no space before the closing parenthesis: www.nezumistudios.com
8. nezumistudios.com PDP: Baleine sibling check, fresh pull at build: both Baleine refs (BA4.102, BA4.202) print the identical spec block and 20 ATM ( 200m / 660ft ): www.nezumistudios.com
9. nezumistudios.com PDP: Corbeau Ref. CQ4.202, fresh pull at build: Diameter: 40mm Lug to lug: 47mm Thickness: 12.75mm inc. domed crystal Lug width: 20mm; Seiko VK63 mecha-quartz; the first family to drop Case from the diameter label and to print the thickness as inc. domed crystal: www.nezumistudios.com
10. nezumistudios.com PDP: Corbeau sibling check, fresh pull at build: both Corbeau refs (CQ4.202, CQ4.702) print the identical spec block; 5 ATM ( 50m / 164ft ): www.nezumistudios.com
11. nezumistudios.com PDP: Terrain Ref. TA1.102, fresh pull at build: Diameter: 38mm Lug to lug: 45.5mm Thickness: 10mm ( + 1.7mm sapphire glass ) Lug width: 20mm; Miyota 9039 Automatic movement; note the half-millimetre lug-to-lug, the thin 10mm case, and the blank case-number before the + in the thickness string: www.nezumistudios.com
12. nezumistudios.com PDP: Terrain sibling check, fresh pull at build: both Terrain refs (TA1.102, TA1.202) print the identical spec block; 20 ATM ( 200m / 660ft ): www.nezumistudios.com
13. nezumistudios.com PDP: Tonnerre Ref. TQ2.102, fresh pull at build: Diameter: 38mm Lug to lug: 45,5mm Thickness: 11.8mm (10.4 + 1.4mm sapphire glass ) Lug width: 20mm; Seiko VK63 mecha-quartz; the only spec line in the catalog that prints a comma decimal, 45,5mm: www.nezumistudios.com
14. nezumistudios.com PDP: Tonnerre sibling check, fresh pull at build: both Tonnerre refs (TQ2.102, TQ2.202) print the identical spec block; 5 ATM ( 50m / 164ft ): www.nezumistudios.com
15. nezumistudios.com PDP: Voiture Ref. VM2.1102, fresh pull at build: Case diameter: 40mm Bezel diameter: 39mm Lug to lug: 47mm Thickness: 12.9mm (11mm + 1.9mm sapphire glass) Lug width: 20mm; Peacock SL-4801 automatic column-wheel chronograph; the only automatic chrono in the catalog: www.nezumistudios.com
16. nezumistudios.com PDP: Voiture VM2 sibling check, fresh pull at build: both VM2 refs (VM2.1102, VM2.202) print the identical spec block; 5 ATM ( 50m / 165ft ), note the 165ft not 164ft: www.nezumistudios.com
17. nezumistudios.com PDP: Voiture Ref. VQ4.101, fresh pull at build: Diameter: 40mm Lug to lug: 47mm Thickness: 12.75mm inc. domed crystal Lug width: 20mm; Seiko VK63 mecha-quartz; its strap selector is the one that offers the Colin 2.1 polished bracelet: www.nezumistudios.com
18. nezumistudios.com PDP: Voiture VQ4 sibling check, fresh pull at build: all three VQ4 refs (VQ4.101, VQ4.202, VQ4.601) print the identical spec block; 5 ATM ( 50m / 164ft ): www.nezumistudios.com
19. nezumistudios.com legacy Baleine URL probe, fresh pull at build: the retired BA2/BA3 generation URLs (baleine-ref-ba2-202, baleine-ref-ba2s-122) still return 200 but soft-redirect to the shop index; the retired refs print no live spec block, so the 16-ref census is the complete live watch list: www.nezumistudios.com