Strap for Saint-Imier Date 30 Pink Gold Diamond

The lug width of the Longines Saint Imier L2.563.9.87.3 is precisely 15mm. This measurement represents the internal space between the watch lug pins. Do not confuse this with the visually apparent lug width, which may appear broader due to constructive flaring. To verify accurately, measure horizontally the pin entry hole with a digital calliper: the result must be exactly 15mm.

Genuine alligator (Alligator mississippiensis) with deep cognac patina represents the most tonally harmonious choice: the reptile texture enhances the warmth of rose gold without competing visually. Aged burgundy shell cordovan offers a maximalist alternative, whilst light grey vegetable-tanned calf creates sophisticated contrast by amplifying the metallic brilliance of the case.

Remove the original strap by gently pushing the spring bar pins from the opposite side using a flatted tool (dedicated spring bar tool). The pins will extract and the strap will release. To install the new 15mm strap, insert the pins into the lateral openings of the case, ensuring the strap flanges embrace the case correctly. Verify symmetrical positioning before fully securing.

Yes, provided it is specifically dimensioned for 15mm lugs. The rarity of this width in standard markets makes it essential to verify the seller's specifications. Straps of 14mm or 16mm will not fit: construction is non-negotiable. Bespoke artisanal straps represent the solution for aesthetic variation whilst maintaining constructive precision.

Longevity depends on material and usage patterns. Superior-quality alligator guarantees 5-7 years of daily wear before serious maintenance is required; shell cordovan can exceed 10 years if properly maintained. Light vegetable-tanned calf has a lifespan of 3-5 years. Periodic maintenance (cleaning with damp cloth, annual conditioning with specific natural creams) substantially extends the useful life. Prolonged exposure to sunlight and humidity significantly reduces the lifespan of any natural leather.