Strap for Constellation Manhattan 25 Quartz Sedna Gold / Aventurine

The lug width of the Omega Constellation 131.50.25.60.53.002 is strictly 16mm. This dimension is integrated into the case with fixed lugs, typical of vintage Constellation models. To verify, measure the internal distance between the two case shoulders with a ruler: it must be exactly 16mm. All our 16mm straps fit perfectly to this model without lateral play.

To enhance the warm tone of Sedna gold, we recommend two main choices: American alligator in cognac or burgundy shades, which pairs magnificently with the rosy gold color and creates a tactile luxury effect; or shell cordovan in burgundy, which develops over time a unique patina with nuances that change with light. Alternatively, Dutch black calf finished with vegetable tanning offers formal versatility while maintaining sartorial quality perception.

The Constellation 131.50.25.60.53.002 features integrated lugs on the case (not removable), unlike modern spring bar systems. You must consult a specialized watchmaker or visit an Omega service center for strap replacement. The watchmaker will use specific tools to detach the strap from the lugs and mount the new leather strap. We recommend entrusting this operation to professionals to avoid compromising the case integrity.

Yes, provided the strap is built specifically for 16mm lug width. Our straps are assembled with tolerances to the tenth of a millimeter and are perfectly compatible with your Constellation 131.50.25.60.53.002. However, for mounting on integrated lugs, you must consult a professional watchmaker. We also offer bespoke service at the Casati Milano atelier for customization and guaranteed installation.

A quality leather strap for a 25mm Constellation, worn daily, lasts on average 3-5 years. Noble materials such as alligator and shell cordovan tend to last longer (4-7 years) thanks to more resistant fibrous structure. Durability depends on climate, humidity, frequency of wear, and maintenance. Casati Milano straps include an 18-month warranty and can be regenerated through our restoration service.