Seiko · Prospex Sky
Strap for Seiko Prospex Sky SSC261P1
The Prospex Sky SSC261P1 Stainless Steel / Black takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
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- Ships in 1–3 working days
- Worldwide shipping
- 30-day returns
- 12-month warranty on manufacturing defects
- Hand-stitched in Milan
Lug width

Your watch with our straps









Calf, Brown
Vintage Brown Calfskin Strap — Natural Patina
€98
★ 4.9 · 11
1 / 55
Real photos of the strap and the case. No generated images.
What length do I need?
Measure your wrist with a tailor's tape or a piece of string, comfortably snug.
| Wrist circumference | Length (long side / short side) |
|---|---|
| 15.0–16.4 cm | 110 / 70 mm |
| 16.5–17.8 cm | 115 / 75 mm |
| 17.9–19.0 cm | 120 / 80 mm |
| 19.1–20.4 cm | 125 / 80 mm |
| 20.5–21.6 cm | 130 / 85 mm |
| 21.7–22.9 cm | 135 / 85 mm |
| over 22.9 cm | on request |
The ready-to-wear strap is 115 × 75 mm. For a smaller or larger wrist I make it in the right length: order your length.
What I'm asked about the Seiko Prospex Sky SSC261P1
What strap size does the Seiko Prospex Sky SSC261P1 take?
The Seiko Prospex Sky SSC261P1 needs 24 mm between the lugs. It's the size I've been fitting on it for years.
Can the strap on the Seiko Prospex Sky SSC261P1 be changed?
Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.
Can I put a leather strap on the Seiko Prospex Sky SSC261P1?
Yes, in 24 mm leather. On a 46 mm case a calf strap works every day; if you want something more, alligator.
Which strap do you recommend for the Seiko Prospex Sky SSC261P1?
A 24 mm calf strap, for every day. You'll find it ready in the 24 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
More Prospex Sky
- Prospex Sky SRPB57K1 Stainless Steel / Black22 mm
- Prospex Sky SRPB59K1 Stainless Steel / Cream22 mm
- Prospex Sky SRPB61K1 Stainless Steel / Black22 mm
- Prospex Sky SSC347P1 Stainless Steel / Blue20 mm
- Prospex Sky SSC349P1 Stainless Steel / Black20 mm
- Prospex Sky SSC351P1 Stainless Steel / Black20 mm
- Prospex Sky SSC353P1 Stainless Steel / Black20 mm
- Prospex Sky SSC419P1 Stainless Steel / Black20 mm
All Prospex Sky → Seiko families →
Every Prospex Sky reference with its measured lug width, on watchbands.ai →
More Seiko in 24 mm
- Prospex Land SNE421P1 Stainless Steel / Black / BraceletProspex Land
- Prospex Land SNE423P1 Stainless Steel / Black / StrapProspex Land
- Prospex Land SNE425P1 Stainless Steel / Black / StrapProspex Land
- Seiko Recraft SNKN37Recraft
- Prospex Diver SSF001J1 Titanium / BlueProspex Divers
- Prospex Diver SUN019P1 Stainless Steel / BlackProspex Divers
For changing the strap
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
The atelier's website: casatimilano.com
