Breitling · Colt
Strap for Breitling Colt A7338710G742145S
The Colt Chronograph II Silver / Rubber takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
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Lug width

Straps for the Colt A7338710G742145S
Selected for the 20 mm lug width
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 Breitling Colt A7338710G742145S
What strap size does the Breitling Colt A7338710G742145S take?
The Breitling Colt A7338710G742145S needs 20 mm between the lugs. It's the size I've been fitting on it for years.
Can the strap on the Breitling Colt A7338710G742145S 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 Breitling Colt A7338710G742145S?
Yes, in 20 mm leather. On a 44 mm chronograph I like box calf: it holds its shape and carries a substantial case.
Which strap do you recommend for the Breitling Colt A7338710G742145S?
A 20 mm box calf. You'll find it ready in the 20 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






