Sinn · Instrument Chronographs
Strap for Sinn Instrument Chronographs 757.021
The Duochronograph 757 S UTC takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
- 4.8 out of 5 · 269 reviews
- 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 / 89
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 Instrument Chronographs 757.021
What strap size does the Sinn Instrument Chronographs 757.021 take?
The Sinn Instrument Chronographs 757.021 needs 22 mm between the lugs, usually 18 or 20 mm at the buckle. It's the size I've been fitting on it for years.
Can the strap on the Sinn Instrument Chronographs 757.021 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 Instrument Chronographs 757.021?
Yes, in 22 mm leather. On a 43 mm chronograph I like box calf: it holds its shape and carries a substantial case.
Which strap do you recommend for the Sinn Instrument Chronographs 757.021?
A 22 mm box calf. You'll find it ready in the 22 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
More Instrument Chronographs
More Sinn in 22 mm
- Diving Watch U1Diving Watches
- Diving Watch U1 CamouflageDiving Watches
- Diving Watch U1 SDiving Watches
- Diving Watch U1 S EDiving Watches
- Diving Watch U1 SDRDiving Watches
- Diving Watch U1 WDiving Watches
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