Strap for GMT-Master II Rolesor / LN

The Rolex GMT-Master 116713ln-0001 features a lug width of 20 millimetres. This measurement defines the distance between the two lugs of the case and determines strap compatibility. Accurate measurement is essential: position a digital calliper between the lugs at the inner point, parallel to the dial. A 20mm strap will insert into the Rolex lugs without lateral play, ensuring secure wear and comfort.

Alligator leather with vegetable tanning is the premier choice for the bi-colour GMT-Master. The longitudinal grains of the dorsal surface create aesthetic contrast against the polished yellow gold, whilst the fibrous structure ensures natural flexibility and durability. Vegetable-tanned alligator develops a rich patina over time that amplifies the watch's prestige. Distinguished alternatives include shell cordovan (dense fibre, natural lustre, dramatic ageing) and vegetable-tanned calf (fine grain, golden patina that mirrors the gold case). For sporting practicality, modern rubber and tactical NATO straps maintain robustness without sacrificing elegance.

Strap change requires precision. Use a spring bar tool—a specialised implement with forked extremities—to compress slightly the retention pins at each lug's terminus. Apply inward pressure to disengage the pin from its seat, then extract the worn strap. Insert the new strap's pins into one lug, compress the opposite pin again and engage it into the other lug with decisive yet controlled motion. The operation demands care: excessive pressure damages the lugs, insufficient pressure leaves the strap insecurely seated.

Yes, provided it adheres rigorously to the 20-millimetre lug width specification. A quality aftermarket strap—crafted from alligator, cordovan or calf—is perfectly compatible. Critical verification: the upper passant (the section encircling the lugs) must embrace the case without lateral play, and the buckle or deployante must be proportioned to the 40mm case diameter. Bespoke, artisanal straps guarantee personalisation and constructive refinement impossible with mass-produced alternatives.

A quality leather strap—alligator, cordovan or vegetable-tanned calf—endures approximately 4 to 6 years with regular wear, provided proper maintenance. Protect from prolonged direct sunlight and excessive humidity; clean occasionally with a soft, lightly dampened cloth. Alligator and cordovan age progressively, developing patina and increased flexibility. After 6 years, leather begins exhibiting fatigue signs (micro-fissures, loss of turgidity). An artisanal vegetable-tanned strap, crafted by master artisans, can be professionally restored—local thinning, fibre reconditioning—extending useful life by a further 3 to 4 years.