Seiko Prospex Divers SLA017J1
The Seiko Prospex Divers SLA017J1 takes a 19 mm watch band.

Seiko · Prospex Divers
- Lug width
- 19 mm
- Case diameter
- 40 mm
- Reference
- SLA017J1
- Family
- Prospex Divers
- Case material
- Acciaio
- Model
- Prospex Diver SLA017J1 Stainless Steel / Black
- Year
- 2017 - 2017
Bands that fit
Cut and stitched in Milano, in the width this watch takes.
Will a strap close on your wrist?
Set for this watch: 40 mm of case and 19 mm between the lugs. Add your wrist and see where a standard strap would close.
mm
Filled in with the case diameter, which is what we hold for this reference. Measure the watch tip to tip for the exact answer: it is usually a few mm more.
Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.
Sizing notes
- 19 mm is the gap between the lugs, so a 19 mm band goes in without adapters. Whether it sits flush against a 40 mm case depends on how that case is shaped.
- 19 mm is an odd size: most ready-made bands are made in even widths, so this reference needs one cut to measure or a band that runs in odd sizes. Why some watches take odd sizes →
- Inside the Prospex Divers family the lug width is not one number: it runs 19, 20, 22, 24 mm. This reference is the 19 mm one, so a band bought for another Prospex Divers may not fit it. Why the size changes inside a family →
- 19 mm is not a common size: only 1,919 of the 41,485 watches measured take it (4.6%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 19 mm →
Other Prospex Divers references
- Prospex Divers Marinemaster 300 Ninja TunaSBBN035
22 mm - Prospex Diver Trans Ocean Stainless Steel / Black / BraceletSBDC039
20 mm - Prospex Diver Trans Ocean Stainless Steel / Blue / BraceletSBDC047
20 mm - Prospex Diver 1970 Scuba Helly HansenSBDC181
20 mm - Prospex Diver SBDX014G Titanium / BlackSBDX014G
22 mm - Prospex Divers SBDX017SBDX017
20 mm
Red Hammered Calfskin Single Pass Watch Strap
Brown Saffiano Leather Strap
Single Pass Hammered Yellow Calfskin Strap
Hammered Calfskin Watch Strap Green with Ecru Stitching
Matte Blue Alligator Strap




