Lorier band size chart by model

Lorier is the simplest brand on this site to size: every watch on the current store takes a 20mm strap. The brand's product pages print the full Dimensions block, but they render it with JavaScript, which is why most shortcut guides skip Lorier entirely [1] [2] [3] [4]. We rendered every current page, then pulled the archived official pages for the retired lines: 25 references below, every width from Lorier's own copy, none guessed. The brand's help center sums it up: most models use either 18mm or 20mm straps [27], and the 18mm watches, the Zephyr and the Safari, are both long retired.

Quick answers: every current Lorier (Hyperion, Neptune, Falcon, Astra) takes a 20mm strap, and every factory bracelet tapers 20 to 16. The size classes differ everywhere except the lugs: 39mm cases (Hyperion, Neptune) carry 46mm lug-to-lug, 36mm cases (Falcon, Astra) carry 44mm [26]. The traps are in the archive: the original 2019 Falcon was a 39mm case, the Hydra III grew to 41mm, and the retired Zephyr and Safari took 18mm.

The chart: 25 references, widths from Lorier's own pages

ModelCaseLug widthWatch out
Hyperion (current)39mm (37mm bezel)20mmthe GMT; 46mm lug-to-lug; bracelet tapers 20 to 16 [1] [29]
Neptune (current)39mm (37mm bezel)20mmthe diver; 46mm lug-to-lug; Barton lists the Series IV variants at the same 20mm [2] [30]
Falcon (current)36mm20mmthe field watch; 44mm lug-to-lug; small case, full-size strap [3]
Astra (current)36mm20mmthe dress daily; 44mm lug-to-lug; same 20mm as the bigger watches [4]
Neptune Series I (2019)39mm20mm48mm lug-to-lug, 2mm longer than today's [5]
Neptune Series III39mm20mm47mm lug-to-lug [6]
Neptune Series IV (2022)39mm20mm46mm lug-to-lug; lug holes repositioned so 2-piece straps sit tighter [7]
Falcon Series I (2019)39mm20mmthe trap: the original Falcon was a 39mm case with 48mm lug-to-lug [8]
Falcon Series II (2020)36mm20mm44mm lug-to-lug; the case shrank 3mm, the strap width did not move [9]
Falcon Series III (2022)36mm20mm44mm lug-to-lug [10]
Hyperion Series I (2020)39mm20mm47mm lug-to-lug [11]
Hyperion Series II (2022)39mm20mm46mm lug-to-lug; Series II shortened the lugs by a millimeter [12] [32]
Astra (2023 first release)36mm20mm44mm lug-to-lug; identical width to the current version [13]
Hydra Series I (2019)39mm20mm48mm lug-to-lug [14]
Hydra Series II (2020)39mm20mm47mm lug-to-lug [15]
Hydra Series III (2023)41mm20mmthe only 41mm case in the archive and still 20mm; 46mm lug-to-lug [16]
Gemini Series I (2019)39mm20mm47mm lug-to-lug [17]
Gemini Series II (2022)39mm20mm46mm lug-to-lug [18]
Olympia Series I (2024)39mm20mmthe chronograph; 46mm lug-to-lug [19]
Olympia Series II (2025)39mm20mm46mm lug-to-lug [20]
Rambler (2024)36mm20mm44mm lug-to-lug; shipped on leather [21]
Roosevelt (2026)36mm cushion20mm42.5mm lug-to-lug; wears like a round 38mm [22]
Merlin (2025)37mm20mm45mm lug-to-lug; shipped on leather [23]
Zephyr (2022)31mm cushion18mmthe 18mm exception; 42mm lug-to-lug; wears like a round 35mm [24] [27]
Safari (2021)36mm18mmthe other 18mm line; 43mm lug-to-lug [25] [27]

One width, two size classes

Lorier splits its catalog into a 39mm class and a 36mm class, and the help center states the pairing directly: Neptune and Hyperion at 39mm wide and 46mm lug-to-lug, Falcon and Astra at 36mm wide and 44mm lug-to-lug [26]. What the size classes do not change is the strap: both classes take 20mm, printed line for line on each product page [2] [3]. That is a deliberately broad-shouldered choice on the 36mm watches, where half-the-diameter logic would suggest 18mm; Lorier went the other way and kept one strap width across the whole catalog. The practical consequence: buy one good 20mm strap and it fits every Lorier currently sold.

The series trap: same name, different case

The Falcon is the worst offender because the change is recent and the name never moved. The 2019 original was a 39mm case with 48mm lug-to-lug [8]; the Series II dropped to 36mm and 44mm [9], and the Series III holds those dimensions [10]. The strap width stayed 20mm the whole way, so straps are safe and only wrist fit moves, by 4mm of lug-to-lug. The Neptune walked its lug-to-lug down over three series (48, then 47, then 46mm) while keeping the 39mm case and 20mm width [5] [6] [7], and the Hyperion did the same 47 to 46mm step at Series II [11] [12]. The Hydra is the reverse case: Series III grew the case to 41mm, the only one in the archive, and still printed 20mm [16].

The 18mm exceptions: Zephyr and Safari

Exactly two Lorier lines ever took 18mm, and both are retired. The Zephyr is a 31mm cushion case that the brand says fits like a round 35mm, with 42mm lug-to-lug and an 18mm width [24]. The Safari is a 36mm case, the same width class as the current Falcon, but with 43mm lug-to-lug and 18mm at the lugs [25]. That Safari row is the one to double-check before ordering: a 36mm Lorier bought today takes 20mm, a 36mm Lorier from 2021 takes 18mm. The help center's 18-or-20mm phrasing is the only place the brand still acknowledges the 18s [27].

The retired lines, all 20mm

Lorier has sunset more lines than it currently sells, and every one of them took 20mm: the Hydra diver across all three series [14] [15] [16], both Gemini chronograph generations [17] [18], both Olympia chronographs [19] [20], the Rambler [21], the Roosevelt cushion [22] and the Merlin [23]. All use drilled lugs with standard spring bars, so ordinary 20mm two-piece straps fit without adapters. Bracelet swappers should read the help center first: Hyperion and Neptune bracelets interchange, current Astra and Falcon endlinks interchange, and the 5-link Epsilon and 3-link Ternion bracelets fit the Neptune, Hyperion and Olympia [28].

Bracelets: the 20 to 16 taper

Every Lorier bracelet tapers from 20mm at the case to 16mm at the clasp, a proportion the brand describes as its house standard on its own manufacturing page [29]. The clasps carry five micro-adjust positions spaced 2mm apart, links are secured by screw pins, and every watch ships with the 1.4mm screwdriver for resizing. If you are replacing the bracelet with a strap, the lug width is the only number that decides fit; the taper is a look, and the watch strap taper chart explains how to read the two numbers in listings like 20/16.

How we verified this

The current catalog is four watches, and their product pages render specifications client-side, so a plain page fetch returns no spec text at all. We executed the pages in a real browser and lifted the Dimensions block verbatim: case width, thickness, lug-to-lug and lug width for all four lines [1] [2] [3] [4]. The retired lines were verified against the brand's own archived product pages rather than forum measurements or dealer listings; an independent spec database agrees with the official figures row for row where it covers them [32], and Barton Watch Bands sells model-branded 20mm straps for the Neptune (including Series IV variants), Falcon and Hyperion [30] [31]. Where a generation differs from its siblings, the row says so; nothing in the table is inferred from case size alone.

Related guides

To check the lug gap yourself before ordering, the measuring guide covers the caliper method, and the lug width chart by brand places Lorier's uniform 20mm against every other brand on this site. The master band size chart indexes all of them. The Zelos chart covers the other microbrand with a one-look rule (and far more exceptions), and the San Martin chart covers the factory-direct territory next door.

Sources

  1. Lorier (official), Hyperion product page, Dimensions block: 39mm case width / 37mm bezel, 10.7mm + 1.45mm crystal, 46mm lug-to-lug, 20mm lug width: lorierwatches.com
  2. Lorier (official), Neptune product page, Dimensions block: 39mm case width / 37mm bezel, 10.3mm + 1.1mm crystal, 46mm lug-to-lug, 20mm lug width: lorierwatches.com
  3. Lorier (official), Falcon product page, Dimensions block: 36mm case width, 8.8mm + 1.6mm crystal, 44mm lug-to-lug, 20mm lug width: lorierwatches.com
  4. Lorier (official), Astra product page, Dimensions block: 36mm case width, 8.8mm + 1.6mm crystal, 44mm lug-to-lug, 20mm lug width: lorierwatches.com
  5. Lorier (official, archived), Neptune Series I product page: 39mm case, 12mm thick, 48mm lug-to-lug, 20mm lug width: web.archive.org
  6. Lorier (official, archived), Neptune Series III page: 39mm case, 47mm lug-to-lug, 20mm lug width: web.archive.org
  7. Lorier (official, archived), Neptune Series IV page: 39mm case, 46mm lug-to-lug, 20mm lug width, lug holes repositioned for 2-piece straps: web.archive.org
  8. Lorier (official, archived), Falcon Series I (2019) page: 39mm case, 48mm lug-to-lug, 20mm lug width: web.archive.org
  9. Lorier (official, archived), Falcon Series II page: 36mm case, 44mm lug-to-lug, 20mm lug width: web.archive.org
  10. Lorier (official, archived), Falcon Series III page: 36mm case, 44mm lug-to-lug, 20mm lug width: web.archive.org
  11. Lorier (official, archived), Hyperion Series I page: 39mm case, 47mm lug-to-lug, 20mm lug width: web.archive.org
  12. Lorier (official, archived), Hyperion Series II page: 39mm case, 46mm lug-to-lug (down from 47mm), 20mm lug width: web.archive.org
  13. Lorier (official, archived), Astra (2023 first release) page: 36mm case, 44mm lug-to-lug, 20mm lug width: web.archive.org
  14. Lorier (official, archived), Hydra Series I (2019) page: 39mm case, 48mm lug-to-lug, 20mm lug width: web.archive.org
  15. Lorier (official, archived), Hydra Series II page: 39mm case, 47mm lug-to-lug, 20mm lug width: web.archive.org
  16. Lorier (official, archived), Hydra Series III page: 41mm case, 46mm lug-to-lug, 20mm lug width: web.archive.org
  17. Lorier (official, archived), Gemini Series I (2019) page: 39mm case, 47mm lug-to-lug, 20mm lug width: web.archive.org
  18. Lorier (official, archived), Gemini Series II page: 39mm case, 46mm lug-to-lug, 20mm lug width: web.archive.org
  19. Lorier (official, archived), Olympia Series I page: 39mm case, 46mm lug-to-lug, 20mm lug width: web.archive.org
  20. Lorier (official, archived), Olympia Series II page: 39mm case, 46mm lug-to-lug, 20mm lug width: web.archive.org
  21. Lorier (official, archived), Rambler page: 36mm case, 44mm lug-to-lug, 20mm lug width, leather strap: web.archive.org
  22. Lorier (official, archived), Roosevelt page: 36mm cushion case (fits like a round 38mm), 42.5mm lug-to-lug, 20mm lug width: web.archive.org
  23. Lorier (official, archived), Merlin page: 37mm case, 45mm lug-to-lug, 20mm lug width, leather strap: web.archive.org
  24. Lorier (official, archived), Zephyr page: 31mm cushion case (fits like a round 35mm), 42mm lug-to-lug, 18mm lug width: web.archive.org
  25. Lorier (official, archived), Safari page: 36mm case, 43mm lug-to-lug, 18mm lug width: web.archive.org
  26. Lorier help center, What size are the watches: Neptune and Hyperion 39mm case with 46mm lug-to-lug; Falcon and Astra 36mm with 44mm lug-to-lug: help.lorierwatches.com
  27. Lorier help center, What strap sizes do Lorier watches take: most models use either 18mm or 20mm straps: help.lorierwatches.com
  28. Lorier help center, Are bracelets compatible across models: Hyperion and Neptune bracelets interchangeable; current Astra and Falcon endlinks interchangeable; 5-link Epsilon and 3-link Ternion bracelets fit Neptune/Hyperion and Olympia: help.lorierwatches.com
  29. Lorier (official), What Makes a Lorier: the custom bracelet's 20/16mm taper is standard across the brand, solid articulating links, screw pins, drilled lugs: lorierwatches.com
  30. Barton Watch Bands, Lorier compatibility listing (Mesh Milanese, 20mm): compatible with Neptune Series IV including Bronze and Gilt variants, Falcon Panda and Reverse Panda, Hyperion including Pepsi, all 20mm lug width: bartonwatchbands.com
  31. Barton Watch Bands, Lorier compatibility listing (silicone quick release, 20mm): Neptune / Falcon / Hyperion at 20mm lug width: bartonwatchbands.com
  32. LugToLugFinder (aggregator cross-check), Lorier Hyperion Series II: 39mm case, 46mm lug-to-lug, 20mm lug width, sourced from the official product page: lugtolugfinder.com