Rolex
GMT-Master 116718LN-0002— lug 20mm

The lug width (ansa measurement) of the Rolex GMT-Master 116718LN-0002 is 20mm. This dimension is determined by the internal distance between the two lugs of the case and represents the constructive specification of this model. You can verify it using a digital calliper positioned perpendicularly across the lugs, or by consulting the official Rolex documentation provided with the watch at purchase.

For the yellow gold GMT-Master 116718LN-0002, we recommend a dark brown alligator or cognac shell cordovan strap. These materials create a natural aesthetic consonance with the warm tone of 18k gold, emphasizing the historic patina. Alligator offers immediate softness and lightness, while cordovan develops a noble patina over time and guarantees superior durability due to skin density. Both require quality tanning to preserve colours and texture throughout their lifespan.

The process requires a specific tool: a spring bar remover. Position the watch with the lug facing upward, insert the flat end of the remover into the lug hole to release the spring, then extract the spring pin from the case. Repeat for the other lug. Subsequently, insert the new strap ensuring the spring pins seat correctly in the case lugs. It is recommended to entrust this operation to a professional watchmaker to avoid damage to the case or strap.

Yes, it is entirely possible and recommended. Any strap with a 20mm lug width is mechanically compatible with the 116718LN-0002. A high-quality bespoke strap, made from natural alligator or shell cordovan with precious metal fittings, not only improves daily comfort but adds aesthetic value to the watch. At milanostraps.it you can find artisanal 20mm straps crafted to European luxury standards.

Lifespan depends on material and usage. A vegetable-tanned calf strap typically lasts between 18 and 24 months of daily wear. Natural alligator, thanks to skin density, offers a lifespan of 24-36 months. Shell cordovan, due to its constructive robustness, can exceed 36 months of useful life. These timeframes extend significantly if the strap is not exposed to excessive moisture or thermal stress. Periodic maintenance with products specific to noble leathers considerably extends strap lifespan.