Rolex
Day-Date 36 118348-0019— lug 20mm

The lug width of the Rolex Day-Date 36 reference 118348-0019 is 20 millimetres. This measurement represents the distance between the two internal fixing pins of the watch strap and determines mechanical compatibility with any aftermarket strap. You can verify this measurement using callipers or a ruler, measuring from inner pin to inner pin in a straight line, excluding the case height.

For a Rolex Day-Date 36 118348-0019 in 18-carat yellow gold, alligator is the canonical choice: its refined grain texture and the patina it develops over time mirror the character of yellow gold. Alternatively, shell cordovan offers extraordinary natural lustre and structural density, whilst vegetable-tanned calf provides daily versatility whilst maintaining formal elegance. Rubber, finally, constitutes a legitimate contemporary statement for daily wear.

Changing the Day-Date 36 strap requires a spring bar remover (a small dedicated steel tool). Gently insert the blade beneath the fixing pin from the lower side, press slightly until the lower end of the pin releases, then extract the old strap and pin. Position the new strap by aligning the side holes, reinsert the pin and verify correct locking. It is recommended to perform the operation on a clean surface to avoid accidental loss of the pin.

Yes, it is absolutely possible to use a high-quality aftermarket strap on a Day-Date 36 118348-0019, provided the lug width is precisely 20 millimetres. Artisanal straps in alligator, shell cordovan, calf and rubber offer numerous advantages over factory straps: colour customisation, superior materials, choice of clasp and closure type (classic buckle, deployant in yellow gold). High-quality artisanal straps guarantee mechanical reliability and longevity over time.

The lifespan of a leather strap for the Day-Date 36 118348-0019 depends on multiple factors: material (alligator, cordovan, calf), frequency of use, climate conditions and maintenance. On average, a high-quality artisanal alligator strap guarantees 4-6 years of daily wear before requiring replacement. Shell cordovan, with its superior density, can reach 8-10 years. Calf has an intermediate lifespan of 3-5 years. Prolonged exposure to moisture, direct sunlight and perspiration significantly reduces longevity. Regular rotation between multiple straps and periodic cleaning can substantially extend the useful life of the product.