Frederique Constant · Index
Strap for Frederique Constant Index FC-255S6B6
Integrated attachment: measurements, the most common questions, and the way to a made-to-measure strap.
Integrated attachment
The Frederique Constant Index FC-255S6B6 has its strap attachment integrated into the case. For a compatible made-to-measure strap, the Casati Milano atelier builds it on your watch.

What I'm asked about the Frederique Constant Index FC-255S6B6
What strap size does the Frederique Constant Index FC-255S6B6 take?
For this reference I won't give you a size I'm not sure of yet. Send me a photo of the watch on WhatsApp: I'll recognise it and tell you how many millimetres you need.
Can the strap on the Frederique Constant Index FC-255S6B6 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.
More Index
- Frederique Constant Index 303GR5B6B20 mm
- Index Worldtimer Quartz Stainless Steel / Silver20 mm
- Index Worldtimer Quartz Rose Gold / Silver20 mm
- Index Automatic Black20 mm
- Index Automatic Roman Black20 mm
- Index Automatic Chocolate20 mm
- Clear Vision Automatic Rose Gold / Brown23 mm
- Index Automatic Stainless Steel / Silver
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
