Strap for Saint-Imier Date 41

The lug width of the Longines Saint-Imier L2.766.5.59.3 is 20 mm. This measurement represents the internal distance between the case lugs and determines compatibility with aftermarket straps. To verify it, measure with a calliper the distance between one lug and the other at the midpoint of the case: the correct tolerance is between 19.8 and 20.2 mm.

For the Saint-Imier L2.766.5.59.3, we recommend an alligator or shell cordovan strap, as these materials create an aesthetically harmonious dialogue with the bicolour stainless steel and rose gold case. A dark brown alligator or burgundy shell cordovan maintains the dignity of the watch whilst developing a patina over time that reflects the rose gold colour. For more versatile uses, structured calf leather in anthracite or navy blue tones offers moisture resistance and dressing versatility.

Changing the strap on the Saint-Imier L2.766.5.59.3 is done by removing the spring bars that connect the strap to the case lugs. Position the watch in a plastic holder, use a dedicated tool to press the pin from underneath and slide it out of the lug, then remove the old strap. Repeat the operation on the other side. To insert the new strap, align the first pin, press the pin until it is fully inserted into the lug, then repeat with the second side.

All aftermarket straps with a 20 mm lug width are compatible with the Saint-Imier L2.766.5.59.3. MilanoStraps offers a dedicated selection of 20mm straps customisable in leather, material, colour, length and stitching finishes. It is advisable to choose straps with an internal attachment ring compatible with standard pins (spring bars of 1.5 mm diameter), present on virtually all modern aftermarket models.

The lifespan of a leather strap depends on the type of tanning and use. An alligator strap with vegetable tanning develops a prized patina in 12-18 months and maintains functionality for 3-5 years with routine maintenance. Shell cordovan, being more resistant, lasts 5-7 years. Structured calf leather has an average lifespan of 2-4 years. With periodic treatment with natural creams and protection from excessive moisture, the lifespan can be significantly extended. Casati Milano provides straps with an 18-month warranty and the possibility of strap regeneration through specialised treatments.