Strap for Day-Date 36 White Gold - Baguette / Bright Blue - Baguette / President

The lug width (ansa measurement) of the Day-Date 36 128399TBR-0027 is 20 mm. This dimension represents the distance between the spring bar pins and allows compatible aftermarket straps to be mounted without adapters. It is the standard proportion for this 36 mm case.

For the white gold 128399TBR-0027, dark brown or black alligator is the traditional formal choice. Burgundy shell cordovan represents the connoisseur's option with mirror patina. Cognac-toned calf leather with vegetable tanning creates an elegant trichromy with the champagne dial. FKM rubber offers contemporary versatility.

The Day-Date 36 features an integrated clasp (Oysterclasp or Rolex Crownclasp). To change the strap, you must remove the lateral spring bar pins using a dedicated extraction tool. We recommend entrusting this operation to a professional to avoid damage. Casati Milano offers this service with personalized consultation.

Yes, any strap with a 20 mm lug width is compatible. Milanostraps offers a curated range of artisanal straps in alligator, calf leather, shell cordovan, and technical rubber specifically dimensioned for this measurement. Casati Milano also personalizes bespoke solutions by appointment at the Milan atelier.

Durability depends on material and usage. A quality artisanal alligator resists 8–12 years with proper maintenance. Shell cordovan, for superior constructive density, can exceed 15 years. Vegetable-tanned calf leather lasts 6–10 years. Sun exposure, perspiration, and humidity accelerate the natural ageing of leather.