Strap for De Ville Prestige Automatic 31.2 Tonneau Yellow Gold / Silver / Bracelet

The Omega De Ville 4103.31.00 has a lug width of 18mm. This is the internal width of the case attachment, measured from the inner edge of one lug to the other without including the material thickness. It is an immutable specification for this model, not a tolerance.

Black matte alligator or dark brown remains the classic choice par excellence. Shell cordovan represents the contemporary alternative, developing a mirror-like sheen that dialogues elegantly with the gold. Vegetable-tanned calfskin offers practicality with natural patination over time. Each choice must consider the dial of your specific example and the predominant context of use.

To change the strap, you need to use a spring bar removal tool. Insert the tip of the tool into the small hole or protrusion on the lug spring lock, compress slightly and slide the lug out of the case. Repeat on the other side. Insert the new strap by aligning the holes with the lugs, then slide until the spring fully locks.

A strap is compatible only if constructed with lugs of exactly 18mm internal width. The Omega De Ville 4103.31.00 does not accept variations: a 16mm or 20mm attachment will not fit. Always verify the lug width specification before purchasing an aftermarket strap. Milano Straps are constructed with precise tolerances to guarantee correct fit.

Durability depends on the material and use. An alligator matte strap, with vegetable tanning or in shell cordovan can last 5-8 years with moderate daily use, before requiring restoration. Vegetable-tanned leather develops predictable minimal creasing. Cordovan, thanks to its density, reaches 10+ years. Occasional use significantly extends longevity. An 18-month warranty covers manufacturing defects; deterioration is a natural part of leather's beauty.