Strap for De Ville Trésor Master Chronometer Power Reserve Sedna Gold / Blue

The lug width of the Omega Trésor 435.53.40.22.03.001 is exactly 20 millimetres. This dimension, measured between the two lugs that support the strap on the case, has been calibrated by Omega to maintain the correct aesthetic proportion with the 40mm diameter case in Sedna Gold. Always verify this measurement by positioning a millimetre ruler from inner edge to inner edge of the spring bars, not from the external shoulder of the case.

For the Trésor 435.53.40.22.03.001 in Sedna Gold, alligator represents the most harmonious choice: the fine grain texture and natural patina that develops create visual continuity with the chromatic evolution of rose gold. Vegetable-tanned calf leather is an excellent alternative for those seeking softness and contemporary appeal. The choice depends on the context of use and personal preference regarding the chromatic dialogue between case and strap.

Strap replacement is performed using a specific tool (pin remover or spring bar tool) to remove the two metal spring bars that lock the strap in the case lugs. Position the tool in the small hole of the spring bar, apply lateral pressure to release the internal spring, and extract the strap. The reverse operation—insertion of the new strap—requires reinserting the spring bars in the lugs until the locking click engages. For Sedna Gold, it is advisable to work with extreme care to avoid scratching the precious case.

No. Although the Omega Trésor in Sedna Gold deserves a conscious choice, high-quality calf leather straps, cotton NATO straps, or structured rubber can function effectively from a technical standpoint. The real difference lies in the aesthetic language you wish to communicate and durability over time. Artisanal straps allow maximum customisation: choice of leather, thickness, thread colour, and buckle finish, creating visual synergy with the Sedna Gold.

A high-quality leather strap (alligator, vegetable-tanned calf, or shell cordovan) has an average lifespan of 3–5 years with moderate daily use, potentially extending to 6–7 years with occasional wear. Longevity depends on exposure to moisture, direct sunlight, and frequency of wear. Natural leather develops patina and character over time; however, constant stress and flexing of fibres determine weakening of critical areas. Artisanal straps with hand-stitched seams on thick leather maintain structural integrity longer than industrial production, and can be refurbished (relining, buckle revision) significantly extending useful life.