Strap for Constellation Manhattan 29 Co-Axial Master Chronometer Sedna Gold / Blue

The lug width of the 131.50.29.20.53.001 measures 18mm. This specific width is the internal distance between the case lugs where the strap is inserted. It is essential to respect this measurement to ensure structural compatibility and stability during daily use.

For the 131.50.29.20.53.001 in Sedna Gold we recommend alligator straps (cognac or dark brown), vegetable-tanned calfskin, or shell cordovan. Alligator creates chromatic harmony with Sedna Gold, calfskin develops a fascinating patina over time, while shell cordovan guarantees extraordinary durability for decades of use.

The 131.50.29.20.53.001 features integrated lugs on the case. To change the strap, you need to use a specific tool (spring bar tool) to compress the spring pins positioned laterally to the lugs, then remove the old strap and insert the new one, verifying that it is correctly positioned on both sides.

Yes, any quality 18mm strap is compatible with the 131.50.29.20.53.001. We recommend verifying that the strap is equipped with appropriate terminals for the rose gold case: a rose gold deployant or a plain terminal are the most elegant options for this model.

Durability depends on the material: standard quality calfskin lasts 4-7 years with daily use, shell cordovan exceeds 15-20 years, alligator ranges around 10-15 years. Atelier Casati Milano offers an 18-month warranty on bespoke artisanal straps, with the possibility of regenerating the leather through reconditioning.