Strap for GMT-Master II Stainless Steel / VTNR / Jubilee

The Rolex GMT-Master 126720VTNR-0002 features 20 mm lugs, measured between the inner pins. This width is specific to this reference and requires a strap or bracelet constructed to millimetre tolerances. It is not compatible with standard 18 mm or 22 mm straps.

Missi alligator is the ideal choice to enhance the model's aviator heritage: the natural grain and evolving patina create a refined contrast with stainless steel. Italian vegetable-tanned calf offers daily versatility and a subtle patina. For waterproofing and sportiness, a NATO textile strap remains a reliable solution; an FKM racing rubber is perfect for aquatic or extreme climatic contexts.

The change requires extraction of the side pins through the access holes on the case. Most modern Rolex watches use a soft system that allows removal with a dedicated tool (pin puller) without damage. It is advisable to contact an authorised service centre or experienced watchmaker to avoid scratching the case. The master craftsmen at Casati Milano guide the owner during installation of the new strap.

Yes, a custom-made 20 mm aftermarket strap is perfectly compatible, provided it is manufactured with precise tolerances. The artisanal straps at milanostraps.it are built specifically for this lug width and guarantee stable attachment and correct suspension with no lateral play. The quality of materials (alligator, calf, shell cordovan) often exceeds that of standard industrial straps.

The lifespan of a leather strap depends on the material and usage. A quality alligator strap can last 5–7 years with regular maintenance (conditioning every 6 months). A vegetable-tanned calf strap requires attention to humidity and lasts on average 4–5 years. A strap subjected to daily stress (humid climates, perspiration, direct sun exposure) will have a shorter life. Casati Milano guarantees 18 months on manufacturing defects; to extend useful life, it is advisable to rotate straps and keep them dry.