Strap for Saint-Imier Chronograph

The lug width of the Longines Saint-Imier L2.752.4.52.3 is 20 millimetres. This measurement is critical for ensuring correct strap fitment to the case: an undersized or oversized lug would compromise both aesthetics and practical functionality. Always measure the inner distance between the lugs (shoulder to shoulder) before purchasing a replacement strap to verify compatibility.

For this Swiss chronograph, we recommend alligator or crocodile leather straps (vegetable-tanned) for a dress-elegant profile, shell cordovan for structural substance and natural patina development, or full-grain calf leather for breathability and characteristic ageing. If you seek versatility, a grey anthracite canvas NATO strap maintains the watch's technical character whilst remaining casual. Consider your dial colour when selecting strap tone: black dial with dark brown, blue dial with navy, sunburst with warm blonde.

The Longines Saint-Imier L2.752.4.52.3 features standard removable lugs with 20 mm spring bars. Use a spring bar tool or a thin implement (toothpick, large needle) to gently push the spring inward whilst extracting the lug from its seat. Do not force: the spring must slide freely. Once removed, position the new strap by aligning the holes with the lug seats, insert the spring bar, and release slowly. Verify that the spring has fully seated in both holes.

Absolutely yes. The L2.752.4.52.3 accepts any 20 mm strap (standard lug width). High-quality aftermarket straps in alligator, calf, shell cordovan, or NATO often offer superior finishes and customization options compared to original Longines straps, whilst maintaining full compatibility. Always verify that the strap is specified for 20 mm and that the spring bars are in optimal condition.

Leather strap longevity depends on frequency of wear, skin perspiration, and post-wear care. A full-grain calf or alligator strap, worn 5–6 days weekly without direct exposure to water, intense sunlight, or prolonged humidity, typically lasts 2–3 years. Vegetable-tanned leather develops natural patina, enhancing aesthetic appeal over time. Shell cordovan is renowned for superior longevity (4–5 years) due to fibre density. To extend service life, alternate strap use with others, allow the strap to air-dry naturally after perspiration, and apply leather conditioner every 6 months.