Strap for Day-Date 36 White Gold / Strap / Cherry

The lug width of the Rolex Day-Date 36 reference 118139-0060 is 20 millimetres. This measurement represents the distance between the two lugs (pins) that connect the strap to the case. It is essential to verify this dimension before purchasing an aftermarket strap, as an incorrect width will not fit the case properly. The 20mm is specific to this white gold model and should not be confused with the total case diameter (36mm).

The best strap depends on your usage and personal aesthetic preference. For classical purity, alligator remains the traditional choice: the natural grain of the leather does not compete with white gold and allows for that patina evolution that collectors seek. Vegetable-tanned calf offers greater tactile character and develops a more pronounced patina. For intensive formal contexts, shell cordovan creates sharp contrast with the metal. For contemporary versatility, an FKM rubber strap on a gold deployant clasp ensures comfort and discreet elegance. All these materials are compatible with the 20mm lug width.

Strap replacement requires specific tools: a spring bar tool and a sturdy work surface. Position the watch on the surface with the case facing downwards, insert the tool tip into the space between the lug and the pin, and lift with consistent pressure to extract the pin. Repeat the operation for the second pin, then align the new strap holes to the lugs and reinsert the pins until they click into place. If you are not experienced, entrust the task to a certified watchmaker: an incorrect manoeuvre risks scratching the white gold case.

Yes. Any strap with a 20mm lug width is compatible with the Day-Date 36 118139-0060. The aftermarket offers various options: alligator, calf, shell cordovan, rubber sports straps and NATO bands. Always verify that the strap is designed for 20 millimetre lugs, as different dimensions (18mm or 19mm) will not fit correctly. MilanoStraps offers a complete collection of artisanal 20mm straps, crafted with premium materials and customisable finishes.

The lifespan of a leather strap depends on intensive use and environmental conditions. A quality alligator strap, with vegetable tanning, in daily use will last 3–5 years before showing signs of structural ageing (failure of the support layer). A vegetable-tanned calf, being more porous, typically lasts 2–4 years. Shell cordovan, due to its density, can reach 5–7 years. However, durability declared by manufacturers refers to structural resistance, not aesthetics: patina and visible wear marks begin within the first 6–12 months and are part of the charm of natural leather. An FKM rubber strap lasts 5–8 years whilst maintaining the original properties intact.