Omega
De Ville 4110.31.00— lug 20mm

The Omega De Ville 4110.31.00 uses a 20mm lug width. This measurement represents the distance between the two spring bar attachments on the case and is essential for selecting a compatible strap. Always verify this dimension before purchasing an aftermarket strap.

To enhance the yellow gold of this model, we recommend a dark brown alligator for formal occasions, or aged calf leather for daily wear. Black calf leather is an elegant option for evening settings. A sand-coloured NATO strap is ideal for those preferring a more versatile and casual approach.

To change the strap, you must remove the spring bars (the small cylinders that secure the strap to the case). Using a specific watch tool (pry bar or spring bar tool), press the spring bars inward to disengage them from their respective holes, allowing the old strap to be removed and the new one inserted. This is a delicate operation: we recommend entrusting it to a qualified watchmaker to avoid scratching the case.

Yes, any strap with a 20mm lug width is physically compatible with the De Ville 4110.31.00. However, aesthetic compatibility depends on material and colour choice. The yellow gold case naturally pairs with warm colours (brown, burgundy) and neutrals (black), making these combinations more harmonious than others.

The lifespan of a leather strap depends on the quality of the tanning and its use. High-quality alligator or calf leather, with vegetable tanning, can last 5-7 years with moderate daily use. The patina and small creases are natural and desirable, signs that the leather is ageing beautifully. The Casati Milano warranty covers 18 months of normal use.