Strap for Constellation Master Chronometer 39 Stainless Steel / Black / Alligator

The Omega Constellation 131.13.39.20.01.001 features a lug width of 24mm. This measurement is specific to the 39mm case diameter and is essential to ensure proper compatibility between case and strap, without visual misalignment or excessive rigidity.

For this model we recommend fine leathers such as alligator for formal elegance, calf for everyday versatility, or shell cordovan for natural patina development over time. The choice depends on use: cocktail events and formal occasions call for alligator with refined finishing, while daily wear benefits from durable calf.

Strap replacement requires a specific tool to extract the lugs from the case back. Ensure the new strap has a lug width of 24mm. If you are not experienced, entrust the work to a professional watchmaker to avoid scratching the case or damaging internal mechanisms.

Yes, provided the strap has a <a href="/pages/termine-glossario/misura-ansa">lug width</a> of 24mm and thickness compatible with the case design. Avoid budget straps that do not respect the original geometries: the Constellation lugs require precision in attachment to maintain the aesthetic integrity of the piece.

A handcrafted strap in superior leather (alligator, calf, shell cordovan) typically lasts 3-5 years with moderate daily wear, up to 7-8 years with occasional use. Durability depends on tanning method (vegetable tanning holds up better over time), environmental humidity, and daily maintenance habits.