Strap for Constellation Manhattan 29 Co-Axial Master Chronometer Stainless Steel / Sedna Gold / Silver Diamond

The lug width is 18mm. This measurement is specific to the 29mm case and represents the distance between the two horizontal attachments where the strap is inserted. Always verify with a caliper to ensure perfect compatibility.

For a timepiece in Sedna Gold with a 29mm case, natural brown alligator (tan or cognac) is the reference choice: fine and consistent grain that enhances the case without competing visually. For sports contexts, shell cordovan or FKM rubber. For elegant everyday wear, vegetable-tanned calf.

Using a specific spring bar tool, gently release the spring bars that hold the strap to the case lugs. Insert the new 18mm strap by aligning the center bar between the upper and lower attachments, then reposition the spring bars. If unsure, Casati Milano provides personalized strap change service with consultation.

Yes. All 18mm straps are compatible, provided that the center bar is exactly 18mm in width. MilanoStraps offers a complete collection of straps in alligator, calf, shell cordovan, rubber and NATO, with customizations in size, initials and stitching color.

A quality alligator strap, with proper tanning, lasts 5-8 years in daily use on a 29mm women's timepiece, as wrist movement is more limited. Vegetable-tanned leather develops accelerated patina within 3-4 years. Casati Milano guarantees 18 months on all handcrafted straps made.