Strap for Constellation Master Chronometer 41 Stainless Steel / Silver

The lug width is exactly 20mm. This space is measured between the two lugs of the case, from the inner surface of one lug to the other. It is essential to verify this measurement before ordering a strap to avoid incompatibility.

It depends on use: black or cognac alligator offers formal elegance and ideal contrast with steel; reddish shell cordovan guarantees natural patina over time; vegetable-tanned brown calf leather allows daily versatility. For sport versions, NATO canvas strap or FKM rubber strap respect the chronometric heritage of the model.

The Constellation 131.12.41.21.06.001 uses threaded lugs at 20mm. For strap change: remove the old strap by widening the lugs with a small pliers or dedicated tool, align the new strap (always 20mm) with the holes on the lugs, then reinsert the threaded lugs. If you are unsure, contact a professional watchmaker.

Yes, absolutely. As long as the strap is 20mm lug width, it is completely compatible. Milano Straps offers handcrafted straps in alligator, shell cordovan and vegetable-tanned calf specifically sized for this measurement, with personalizations in initials and choice of stitching thread.

A quality leather strap, such as alligator or shell cordovan, lasts 3-5 years with daily use, developing patina and character over time. Vegetable-tanned leather tends to age more rapidly (2-4 years) but with fascinating aesthetics. Casati Milano offers an 18-month warranty on all handcrafted straps and support for maintenance.