Strap for Constellation Master Chronometer 41 Stainless Steel / Ceramic / Black

The lug width is 18mm. This measurement represents the internal space between the bracelet attachment pins. You can verify it by measuring directly the horizontal pins on your watch: the distance will be exactly 18mm, compatible with all 18mm straps from the Milano Straps collection.

The choice depends on your usage and personal style. For formal occasions we recommend brown or black alligator; for everyday versatility, vegetable-tanned calf leather in neutral tones; for sports or summer activities, NATO canvas or FKM rubber. All are available in 18mm size on our catalog.

Remove the pins supporting the original bracelet using a dedicated tool or spring bar tool. Insert the new strap by aligning the side holes with the pins, then reinsert the pins themselves. If you are not experienced, Casati Milano can assist you in the workshop or provide you with detailed video guides.

Yes. The 18mm straps from Milano Straps are handcrafted and compatible with this reference. They offer quality comparable to bespoke manufacturing, with customization options: sizes, initials, and choice of stitching thread. Each strap includes warranty and post-sale support.

A premium leather strap (alligator, calf, shell cordovan) typically lasts 4-6 years with moderate daily use, developing a characteristic patina over time. Longevity depends on exposure to moisture, sweat, and UV rays. Vegetable tanning tends to age more elegantly than chrome-tanned leather, creating a sought-after vintage aesthetic.