Strap for Saint-Imier Chronograph

The lug width of the Longines Saint Imier L2.752.5.52.7 is 20mm. This measurement represents the inner distance between the two lugs on the case and is essential for selecting a compatible strap. Use a calliper to measure the distance between the inner edges of the lugs on the same side of the case to confirm the measurement.

For the L2.752.5.52.7, we recommend alligator leather in cognac or chocolate tones to enhance the rose gold, or vegetable-tanned calf in honey colour to balance steel and gold. For those seeking versatility, Italian calf leather offers an ideal combination of softness and durability. Avoid NATO straps, as they fundamentally alter the sport-elegant identity of the model.

The strap is changed by removing the lug pins (spring bars). Use a spring bar tool, gently pressing the small hole on the side of the case to release the pin. Extract the old strap, position the new one by aligning the holes, and press the pin until it clicks into place. Verify the pin is securely seated before wearing the watch.

Yes, any strap with a 20mm lug width is compatible with the L2.752.5.52.7. Always verify the measurement before purchase. Artisanal straps from quality manufacturers like Milanostraps guarantee constructive precision and finishing comparable to original Longines straps.

A quality leather strap with vegetable tanning typically lasts 2–3 years with daily wear, provided it is kept dry and protected from excessive humidity and perspiration. Ageing is natural and desirable: the patina that develops is a sign of authenticity. Casati Milano offers an 18-month guarantee on bespoke straps, ensuring replacement in the event of construction defects.