Strap for Datejust 36 Stainless Steel / Everose / Fluted / White / Jubilee

The Rolex Datejust 36 reference 126231-0017 has a lug width of 20 millimetres. This measurement is the distance between the two lugs (case ends) and is specific to this model. Measurement should be taken with a digital calliper between the inner edges of the lugs, excluding the spring bar. Only straps with a 20 mm spring bar will be compatible without play or risk of accidental detachment.

For a Datejust 36 two-tone in rose gold and steel, alligator remains the material of choice: a deep cognac or Havana brown creates aesthetic symbiosis with the rose gold. Alternatively, fine-grained calf with vegetable tanning offers a natural patina that evolves over time. The choice depends on your use case: alligator for formal occasions, calf for everyday versatility. Avoid rubber or silicone, which would contradict the dress-casual language of the watch.

The strap on a Rolex Datejust is changed by removing the spring bars with a dedicated tool: a spring bar remover or even a Swiss Army knife in experienced hands. Position the watch so that one lug points downward, insert the tool under the spring bar, lift gently upward until the spring yields, then remove the strap. Repeat on the opposite side. Install the new strap by aligning the holes with the lugs and press the spring bars until they click. If unsure, consult a professional watchmaker: the risk is damaging the case.

Yes, absolutely. The Datejust 36 with 20 mm lug width accepts any strap manufactured for this measurement, regardless of brand. Artisanal straps in alligator, calf or fine leather often offer superior quality compared to original straps, with better anatomical curves and selected materials. The important thing is to verify compatibility of lug width (20 mm) and spring bar thickness. Casati Milano produces custom straps for this measurement with an 18-month warranty on manufacturing defects.

The lifespan of a leather strap depends on daily use, climate conditions and tanning quality. A quality artisanal alligator or calf strap lasts between 3 and 5 years with moderate wear (worn 4-5 days per week). In humid climates or with frequent perspiration, durability reduces to 2-3 years. Vegetable-tanned calf tends to age more elegantly than alligator, developing a visible patina. Replacement is straightforward and recommended before the leather cracks: a new strap on a valuable Datejust preserves the overall aesthetic dignity of the watch.