Strap for De Ville Trésor Master Co-Axial Yellow Gold / Silver Diamond

The lug width of the Trésor 432.53.40.21.52.003 is exactly 20mm. This means that any compatible strap must be constructed with an internal measurement of 20mm between the suspension pins. Even a millimetric tolerance error compromises the fit to the case and the security of the attachment.

Natural alligator remains the canonical choice: the regular grain and luminous patina harmonise chromatically with yellow gold, creating aesthetic unity. Alternatively, vegetable-tanned calf or shell cordovan offer tactile depth and temporal evolution of patina, perfect for those investing in lasting visual quality.

The strap is secured to the case via horizontal suspension pins. Using a spring bar tool (small lever instrument), apply pressure to the pin from one side to remove the old strap, then position the new one by aligning the holes and allowing the pin to snap into place. The operation requires care and clean workspace to avoid scratching the case back.

Yes, provided the lug width is exactly 20mm. Quality aftermarket straps (alligator, calf, cordovan) maintain the same suspension specifications. The key is selecting suppliers that guarantee tight tolerances and finishing consistent with the quality of the precious case.

Durability varies based on material and usage. Vegetable-tanned alligator resists wear for 4-6 years with moderate daily use. Shell cordovan can last 5-7 years thanks to fibrous density. Naturally tanned calf thins earlier, approximately 3-4 years. The patina that emerges is a sign of authenticity, not impending deterioration.