Strap for Artelier Date 40 Stainless Steel - Yellow Gold / Silver / Bracelet

The lug width (ansa) of the 01 733 7591 4351-07 8 21 74 model is 21 millimetres. This dimension represents the distance between the two lugs of the case where the strap is inserted and is critical for correct fitting. Always verify the measurement with a calliper before ordering a replacement strap.

This depends on your style and intended use. For formal elegance, we recommend a vegetable-tanned calf leather in black or brown, or authentic alligator which enhances the textural contrast with the PVD case. For daily versatility, a dense cotton NATO or technical FKM rubber. Casati Milano provides personalised consultation at the atelier.

The strap is replaced by removing the spring bars (perni) that secure it to the case lugs. Using a dedicated spring bar tool, push the bar inward to release the strap. Then align the new strap's holes with the lugs and reinsert the bar until it clicks into place. If you lack experience, Casati Milano offers replacement service at the atelier.

Yes, all straps with a 21-millimetre lug width are compatible with your Oris Artelier. Milano Straps offers a curated collection of artisanal 21mm straps (leather, alligator, NATO, rubber) selected for quality and durability. Always verify the lug width before purchase to prevent incompatibility.

A high-quality vegetable-tanned calf leather strap typically lasts 3–5 years under moderate use with regular maintenance (periodic cleaning, protection from excess moisture). Alligator, being a more resistant material, easily reaches 7–10 years. The patina that develops over time is a sign of noble ageing, not deterioration. Casati Milano can regenerate straps through professional re-tanning.