Seiko · Mechanical
Strap for Seiko Mechanical SKX009K2
The Seiko SKX009 Black / Stainless Steel takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
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- 12-month warranty on manufacturing defects
- Hand-stitched in Milan
Lug width

Straps for the Mechanical SKX009K2
Selected for the 22 mm lug width · workshop selection
Blue Alligator and Rubber Hybrid Strap · rubber, for the water€138
Matte Olive Green Alligator and Rubber Hybrid Strap · rubber, for the water€138
Grey Hammered Leather Strap with Ecru Stitching€98
Vintage Olive Green Calf Leather Watch Strap★ 4.5 · 4€80
Saffiano Cognac Strap€90
Black Saffiano Rubber Strap€105
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 Mechanical SKX009K2
What strap size does the Seiko Mechanical SKX009K2 take?
The Seiko Mechanical SKX009K2 needs 22 mm between the lugs. It's the size I've been fitting on it for years.
Can the strap on the Seiko Mechanical SKX009K2 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 Mechanical SKX009K2?
Yes, in 22 mm leather, as long as you don't wear it in the water: leather doesn't like the sea or the pool. For days in the water, rubber. On a 42 mm diver I go for a full-thickness strap, not a thin one.
Which strap do you recommend for the Seiko Mechanical SKX009K2?
Rubber if you wear it in the water; otherwise a 22 mm calf strap, full thickness. You'll find it ready in the 22 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
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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
