Strap for Constellation Master Chronometer 39 Yellow Gold / Champagne / Bracelet

The Omega Constellation reference 131.50.39.20.08.001 features a lug width of 24mm. This is the width of the metal element that fits into the suspension holes of the case, not the total visible width of the strap. This measurement is essential for purchasing compatible aftermarket straps without risk of damage.

For a yellow gold Constellation, brown or burgundy alligator remains the most iconic choice: the natural scale grain amplifies the formal elegance of the precious case. Alternatively, cognac shell cordovan offers versatility and evolving patina over time. For more sporty contexts, vegetable-tanned calf or FKM rubber ensure seamless transitions while maintaining recognition of the watch's value.

Strap replacement occurs by opening the internal spring bar. Use a specific tool to push the bar from one side while you remove the used strap. Once the space is cleared, insert the new strap by aligning the lug hole with its seat and release the spring bar. For yellow gold Constellation we recommend entrusting the operation to a professional watchmaker to avoid micro-scratches on the precious case.

Yes, absolutely. The 24mm collection straps from milanostraps.it are purpose-made for this lug width and are perfectly compatible with your Constellation. They are customizable in length, embroidered initials, and thread color. Consult the complete catalog and contact Casati Milano for bespoke variations and specific color advice for your yellow gold.

A premium alligator or shell cordovan strap, with constant daily use, maintains structural and aesthetic functionality for 18-24 months. Wear factors include moisture and perspiration (which accelerate aging), sun exposure (which alters patina), and cleaning frequency. With proper maintenance (nourishing treatment every 6 months) it is possible to extend service life. Milano Straps straps include an 18-month warranty with Casati Milano.