Strap for Saint-Imier Date 30 Stainless Steel

The lug width of the Longines Saint Imier L2.563.4.52.6 is 15mm. This measurement, smaller than standard unisex lugs of 16-18mm, requires specific strap selection compatible with this dimension. You can verify the measurement by using a digital calliper to measure the space between the lateral lugs on the case.

For this elegant and compact timepiece, we recommend alligator leather with fine grain and natural tanning, which develops a beautiful patina over time. Alternatively, Italian vegetable-tanned calf leather offers an excellent balance between tactile quality and sustainability. Japanese shell cordovan is ideal if you prefer intrinsic lustre and extreme durability. Rubber straps remain practical only in frequent aquatic environments.

Strap replacement requires extraction of the lateral spring bars positioned on the case lugs. Use a dedicated spring bar tool to compress the small internal pin and extract it from its housing. Insert the new strap lugs into the freed spaces and reinsert the spring bar until it clicks into locking position. If you are uncertain about the procedure, entrust the operation to a qualified watchmaker to prevent case scratches.

Yes, any strap with a 15mm lug width is compatible with the L2.563.4.52.6. Milano Straps offers a curated selection of artisanal straps in various materials (alligator, calf, shell cordovan, rubber) ready for shipment and customisable in length, initials and thread type. The Casati Milano atelier also creates bespoke straps with hand-selected leather.

A high-quality leather strap (alligator, vegetable-tanned calf, shell cordovan) lasts 18–36 months with moderate daily wear. Longevity depends on humidity exposure, personal perspiration levels and maintenance: a natural patina develops within 6–12 months. We recommend rotating the strap seasonally to distribute wear. Milano Straps offers an 18-month warranty on all artisanal straps.