Strap for Master Collection 40 Date Stainless Steel / Black-Roman / Alligator XL

The lug width is exactly 21mm. This specification is critical for selecting compatible straps: when measured with a digital calliper from the centre of one spring bar to the other, the result must be 21mm. Do not use 20mm or 22mm straps, as they will not fit the case lugs correctly.

Alligator Mississippi in natural or black is the coherent choice: regular grain pattern naturally complements the brushed silver dial. Respectable alternatives include vegetable-tanned calf leather (which develops patina over time), shell cordovan for those preferring visual contrast, and FKM rubber for aquatic use. Always choose a stainless steel deployant clasp for stability.

Use a spring bar tool. Position the watch on a stable surface, insert the tool tip into the small cavity of the spring bar, apply gentle downward pressure and push the strap sideways to release the lug. Reverse the procedure to install the new strap. Never use screwdrivers, as they will damage the case steel.

Yes, provided the strap is declared as 21mm lug width. Always verify that the seller specifies the measurement and provides images of the mounted strap lugs. An artisanal strap may have ±0.2mm variations due to hand-crafting: this is normal and does not compromise compatibility. If uncertain, contact the seller before purchase.

A high-quality alligator or calf strap, with proper maintenance, lasts 3-5 years of daily use. Alligator is more resistant to wear and atmospheric agents; calf is more sensitive to humidity and perspiration. Extend lifespan by rotating straps, avoiding prolonged exposure to direct sunlight and chlorine, and periodically applying a nourishing balm specific to leather. Vulcanised rubber has a shorter lifespan (2-3 years) but is more resistant to mechanical damage.