Sinn · Classic Timepieces
Strap for Sinn Classic Timepieces 6100.021
The Classic Timepieces Regulateur Rose Gold / Silver takes 22 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 / 101
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 | 120 / 70 mm |
| 16.5–17.8 cm | 125 / 75 mm |
| 17.9–19.0 cm | 130 / 80 mm |
| 19.1–20.3 cm | 135 / 85 mm |
| 20.4–21.6 cm | 140 / 85 mm |
| 21.7–22.9 cm | 145 / 90 mm |
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 Sinn Classic Timepieces 6100.021
What strap size does the Sinn Classic Timepieces 6100.021 take?
The Sinn Classic Timepieces 6100.021 needs 22 mm between the lugs. It's the size I've been fitting on it for years.
Can the strap on the Sinn Classic Timepieces 6100.021 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 Sinn Classic Timepieces 6100.021?
Yes, in 22 mm leather. On a 44 mm dress watch alligator is the natural choice: thin, elegant, what it was born for.
Which strap do you recommend for the Sinn Classic Timepieces 6100.021?
A thin 22 mm alligator. You'll find it ready in the 22 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
More Classic Timepieces
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- Classic Timepieces 1736 St I 4N19 mm
- Classic Timepieces 1746 Classic22 mm
- Classic Timepieces Modell 230020 mm
- Classic Timepieces Regulateur Stainless Steel / Silver22 mm
- Classic Timepieces Regulateur Stainless Steel / Silver22 mm
- Classic Timepieces Regulateur Technik Stainless Steel / Black22 mm
- Classic Timepieces Regulateur White Gold / Grey22 mm
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Every Classic Timepieces reference with its measured lug width, on watchbands.ai →
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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
