Strap for Saint-Imier Date 38.5

The Longines Saint Imier L2.763.4.72.0 features a lug width of 20mm, the classic size for elegant watches in this category. This measurement is taken from the internal point where the strap rests, excluding any decorative protrusions on the case. The 20mm proportion on a 38.50mm case delivers impeccable visual harmony.

For this model, alligator leather in taupe brown or havana tones represents the most aesthetically and constructively appropriate choice. The natural grain of the dorsal scales contrasts elegantly with the brushed stainless steel case. Alternatively, shell cordovan offers superior density and a natural patina that improves with age, ideal for collectors seeking longevity. For sportier applications, technical FKM rubber maintains practicality without compromising durability.

Strap replacement requires a spring bar tool or a thin screwdriver. Insert the tool into the lug slot, push the elastic spring bar inward and extract the previous strap end. Repeat on the opposite lug. Align the new strap's holes with the lug ends and reinsert the spring bar. Ensure the strap is securely fastened before wearing. This procedure should be performed with precision to avoid damaging the delicate lug area.

Yes, the Saint Imier L2.763.4.72.0 is fully compatible with 20mm aftermarket straps from specialised artisanal manufacturers. The standardised lug width allows access to an extensive selection of materials (alligator, calf leather, shell cordovan, rubber) and colours. It is recommended to choose suppliers who respect the original watch's construction standards, ensuring clean installation and finishing coherent with the timepiece.

A natural leather strap (alligator, calf or shell cordovan) worn daily has an average lifespan of 3-5 years, depending on the tanning method and environmental factors (humidity, perspiration, sun exposure). Vegetable tanning develops a natural protective patina extending durability. Premium materials such as shell cordovan can exceed 7-8 years of use. Technical FKM rubber offers a lifespan exceeding 10 years under normal conditions. Periodic servicing by a specialist watchmaker significantly extends strap longevity.