Longines · Saint Imier

Strap for Saint-Imier Date 30 Two Tone

Takes 15 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width15 mm
Case diameter30 mm
ReferenceL2.563.5.87.7 (aka: L25635877)
FamilySaint Imier
MovementLongines caliber L595 hours, minutes, seconds | date
CaseMother of Pearl | Rose Gold, Stainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Frequently asked questions

What is the lug width of the Longines Saint Imier L2.563.5.87.7?

The Longines Saint Imier L2.563.5.87.7 features a lug width of 15mm, an uncommon dimension that reflects the compact proportions of its 30mm case. This measurement is precise and should not be confused with strap thickness. To verify it, measure the internal space between the two lugs where the strap attaches: it must be exactly 15mm.

Which strap is recommended for the Saint Imier L2.563.5.87.7?

Alligator leather crafted with vegetable tanning represents the optimal choice to maintain the discrete elegance of the Saint-Imier L2.563.5.87.7. The natural texture of the leather dialogues beautifully with the mother-of-pearl dial. As an alternative, vegetable-tanned calf leather offers versatility and durability, ideal for daily wear. For a sportier approach, a fine-weave NATO strap remains coherent with the design. Avoid oversized straps or excessively structured materials that would imbalance the watch's compact proportions.

How do I change the strap on my Longines Saint Imier L2.563.5.87.7?

Changing the strap is straightforward: remove the original strap by extracting the lug pins using a dedicated tool (spring bar tool), available online or through specialist retailers. Insert the new 15mm strap into the same lug slots, ensuring the pins are fully seated. If you lack confidence, the Casati Milano atelier offers a quick replacement service by appointment, guaranteeing precision and case preservation.

Can I use an aftermarket strap on this Longines?

Yes, any strap with a 15mm lug width is compatible with the Longines L2.563.5.87.7, provided it meets elevated construction standards. Artisanal straps from milanostraps.it are engineered with technical specifications identical to original Longines straps, respecting thickness, stitching finishes, and pin solidity. A quality aftermarket strap ensures not only mechanical compatibility but also aesthetic coherence with the watch's sophisticated design. Always verify the L2.563.5.87.7 reference when purchasing.

How long does a leather strap last on a watch like the Saint Imier?

A premium leather strap, treated with vegetable tanning, has an average lifespan of 3-5 years with moderate daily wear. Longevity depends on factors such as frequency of wear, water exposure, humidity, and periodic care. The mother-of-pearl dial of the Saint-Imier L2.563.5.87.7 encourages seasonal strap rotation, extending the life of each piece. Alligator straps typically outlast calf leather alternatives. Casati Milano provides an 18-month guarantee on their artisanal work, with the possibility of restoration through specialist treatments.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only