Prospex
Seiko SPB241
- Case Ø
- 38mm
- Lug to lug
- 46.2mm
- Thickness
- 12.9mm
- Lug width
- 19mm
- Weight
- 146g
Movement Seiko 6R35
Strap size by lug width
19 mm lug width watches
6 watches in our base take a 19 mm strap (5 Seiko, 1 Addiesdive), with cases of 36–40 mm and 46–46.2 mm lug to lug. To check your own, measure the gap between the lugs, inside edge to inside edge: that is the lug width, and the strap and its spring bars must be that wide.
Sources checked · How we source numbers
Watches with 19 mm lugs
Each lug width below comes from a cited source; the model page has every size. Integrated bracelets and proprietary straps are not listed: they take no standard strap.
Silhouettes from the published sizes, shortest first, all to one scale; the bar and each grid square are 10 mm. Not photos.
Show the specs table · 6 models, every number with its source
- Addiesdive AD2096 Explore Dive 36mm
Quartz (analog) models · TMI VH31 · quartz (analog)
- Seiko SLA017
Prospex · Seiko 8L35 · automatic
- Seiko SPB241
Prospex · Seiko 6R35 · automatic
- Seiko SPB245
Prospex · Seiko 6R35 · automatic
- Seiko SPB249
Prospex · Seiko 6R35 · automatic
- Seiko SPB259
Prospex · Seiko 6R35 · automatic
Measuring and choosing a 19 mm strap
- How to measure lug width
- Strap off, calipers or a ruler across the gap between the two lugs on one side, inside edge to inside edge, read in millimetres: a 19 mm gap takes a 19 mm strap.
- Strap and spring bars
- 19 mm wide at the lug end, on spring bars for a 19 mm gap. The bar tips must also fit the holes in the lugs (1.8 mm is the usual size; thinner and thicker exist).
- Case thickness here
- 12–14 mm
- Wrists that suit them
- balanced from ~16.5 cm (shortest, 46 mm) to ~16.5 cm (longest, 46.2 mm); flat-fit estimate
An 18 mm strap leaves a visible gap between the lugs and a 20 mm one has to be forced in, so buy the exact width. The figures above are the ranges of the 6 models listed here, not a rule for every 19 mm watch. Work out your strap length in the watch strap size tool.
19 mm lug width questions
Which watches have a 19 mm lug width?
Seiko: SLA017, SPB241, SPB245, SPB249, SPB259. Addiesdive: AD2096. That is 6 models in our base with a sourced 19 mm lug width.
How do I measure the lug width of my watch?
Take the strap off, then measure the gap between the two lugs on one side, from the inside edge of one lug to the inside edge of the other, with calipers or a ruler on a flat surface. That gap in millimetres is the lug width, and the strap you buy must be that wide at its lug end. If the strap is still on, measure the strap itself where it meets the case.
What spring bars does a 19 mm strap need?
Spring bars for a 19 mm gap are 19 mm long, shoulder to shoulder; the bar compresses to slip in between the lugs. Their tips must also match the holes in your lugs: 1.8 mm is the usual tip size, and thinner and thicker ones exist, so if a bar does not seat, check the hole before forcing it.
Can I put an 18 mm or a 20 mm strap on a 19 mm watch?
An 18 mm strap leaves a visible gap beside each lug, and a 20 mm one has to be forced in and can mark the lugs. Buy the exact width.
Which 19 mm lug watch wears smallest?
The Addiesdive AD2096, at 46 mm lug to lug (balanced from about 16.5 cm wrists by the flat-fit estimate). The longest here is the Seiko SPB259 at 46.2 mm, balanced from about 16.5 cm.
Sources
Documents checked · Report a wrong number
- 1ADDIESDIVE — AD2096 Explore Dive 36mm product page · html · read
- 2Right Time International — SLA017 listing, Right Time (Denver), dealer spec block · html · read
- 3WatchBase — SLA017J1 Prospex Diver, WatchBase database entry · html · read
- 4Seiko Watch Corporation — SPB241J1 product page (Prospex), seikowatches.com global-en · html · read
- 5Seiko Watch Corporation — SPB245J1 product page (Prospex), seikowatches.com global-en · html · read
- 6Seiko Watch Corporation — SPB249J1 product page (Prospex), seikowatches.com US · html · read
- 7Seiko Watch Corporation — SPB259J1 product page (Prospex), seikowatches.com global-en · html · read