Strap for Saint-Imier Chronograph

The lug width of the Longines Saint Imier L2.752.5.52.3 is 20 mm. This width is the specific standard for Longines sports chronographs in this category. To verify it, measure the internal distance between the case lugs using a digital calliper: it must be exactly 20 mm to ensure proper strap fitting.

For the two-tone rose gold and steel version, we recommend a dark brown or black alligator strap: these colours do not compete visually with the case contrast and maintain the aesthetic hierarchy of the watch. Vegetable-tanned alligator leather develops a natural patina over time, adding depth without altering stylistic balance.

The Longines Saint Imier L2.752.5.52.3 uses a simple lug system accessible without specialist tools. Position the watch face-down, locate the small holes at the ends of the original strap, insert a spring bar tool to lift the elastic pin, and slide the strap from the case. Repeat the process in reverse with the new 20 mm strap.

Yes. All straps with a 20 mm lug width are compatible with the L2.752.5.52.3. Milanostraps offers a specialised collection of 20 mm handcrafted straps, customisable in length, leather type and finishing details, with the option to apply a deployante clasp for comfort.

The lifespan of a leather strap depends on material and usage. Vegetable-tanned alligator maintains optimal structure for 5-7 years of daily wear, shell cordovan can exceed 8 years, vegetable-tanned calf typically 3-5 years. Proper storage, avoiding prolonged moisture and direct sunlight, significantly extends useful life. A rubber or synthetic strap has indefinite structural life but requires periodic maintenance.