Strap for De Ville Tourbillon Co-Axial Platinum / Skeleton

The lug width of the Omega De Ville Platinum 513.93.39.21.99.001 is 20 millimetres. This is a precise and non-negotiable technical specification. The measurement refers to the distance between the two attachment holes of the spring bar, excluding the thickness of the case lugs. Any aftermarket or custom strap must respect this dimension to ensure secure mounting and correct aesthetics.

The ideal strap depends on usage and aesthetic preferences. For maximum formality, a black alligator with silver stitching represents the reverential choice. For those wishing to develop a patina over time, a superior quality vegetable-tanned calf leather (cognac brown or espresso brown) offers tactile and visual excellence. Shell cordovan is an extraordinary choice for those who appreciate refined materials: its natural lustre dialogues perfectly with platinum. For more versatile contexts, a pearl grey calf or a technical canvas strap with tobacco-coloured stitching maintains classical dignity while adding daily practicality.

The procedure requires a specific tool called a spring bar removal tool. Keeping the watch stable on a soft surface (microfibre cloth), position the tool under the spring bar from one side of the case, gently pushing to compress the spring, then pull the bar outward. Repeat from the other side. Reverse the procedure to install the new strap, verifying that the spring is fully inserted into the attachment holes and that the strap adheres perfectly to the case without play.

Yes, there are numerous quality aftermarket straps compatible with the 20mm lug width. Milano Straps offers a specialized selection of 20mm straps in alligator, calf, shell cordovan and other premium materials, shipped ready to wear and customizable in final sizes, stitch colour and initials. The Casati Milano atelier also offers the possibility of completely bespoke custom straps, with personal choice of leathers and 18-month warranty, via consultation by appointment.

A superior quality leather strap (alligator, noble calf, shell cordovan) has a lifespan between 5 and 10 years of daily wear, depending on the type of tanning, environmental humidity and frequency of sun exposure. Vegetable-tanned leather tends to age with greater elegance, developing patina and chromatic depth, while remaining structurally resilient if subjected to minimal maintenance (periodic cleaning with a damp cloth, gentle drying). Factors such as prolonged water exposure, intense perspiration and poor ventilation can shorten useful life. Milano Straps straps include an 18-month warranty on construction quality and materials.