Strap for Master Collection Date 29 Pink Gold

The lug width of the L2.257.8.87.3 is precisely 15mm. This measurement refers to the internal distance between the case lugs (the points where the spring bars insert). It is essential to measure with a digital calliper to ensure compatibility, as a variation of even ±1mm would render the strap unusable. Tolerance in watchmaking is strict for both security and aesthetic reasons.

For this rose gold model, we recommend dark brown alligator, aged shell cordovan, or vegetable-tanned calf leather. Alligator offers minimalist elegance with a regular grain that does not compete with the precious metal; shell cordovan develops natural copper patinas that pair perfectly with rose gold over time. Vegetable-tanned calf represents the contemporary, sustainable, and versatile choice. Avoid synthetics or rubber unless required for specific sporting use.

The strap is secured by two spring bars (elastic pins) inserted into the case lugs. Removal requires specific tools: a spring bar tool or dedicated extractor. Position the tool beneath the pin, apply downward pressure to compress the internal spring, then extract horizontally. Installation follows the reverse process. For rose gold models of significant value, we recommend entrusting the operation to a qualified watchmaker to avoid scratching the case.

Yes, provided the lug width is strictly 15mm. Aftermarket bespoke straps of high quality (such as alligator or shell cordovan) are often preferable to factory straps for aesthetic elegance and durability. Milano Straps offers 15mm straps customisable in leather type, length, initials, and stitching thread. Compatibility is guaranteed with respect to the case lugs, not the original brand.

A premium leather strap (alligator, shell cordovan, calf) typically lasts 5–8 years of moderate daily use, and up to 10+ years with exceptional leather and proper care. Longevity depends on sun exposure, humidity, perspiration, and frequency of wear. Alligator straps are more durable than calf, as reptilian leather is naturally denser. Natural ageing is not damage but aesthetic evolution (patina and texture development). Bespoke straps from Casati Milano include an 18-month warranty against manufacturing defects.