Technical Archive

Longines
Lyre L4.361.2.11.7— lug 15mm

Longines Lyre L4.361.2.11.7: 15mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Lyre 30 Automatic PVD Gold / White - Roman / Bracelet

Artisanal Note

"This model requires a precise 15mm lug width to preserve the original sartorial balance."

Lug Width

15 mm

The essential strap measurement.

Browse 15mm straps →

Reference

L4.361.2.11.7

Movement

Longines caliber L888.5 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Longines Lyre L4.361.2.11.7 is a 30mm stainless steel automatic watch from the Lyre family, featuring the certified chronometer Longines L888.5 movement. The case combines satin and polished finishes with an anti-reflective sapphire crystal and offers 30 meters water resistance. The lug width is 15mm, a rare specification that requires precise strap selection to maintain the watch's refined proportions and elegant aesthetic.

FAQ

What is the lug width of the Longines Lyre L4.361.2.11.7?

The lug width of the Longines Lyre L4.361.2.11.7 is 15 millimetres. This measurement is taken by positioning a digital calliper perpendicular to the case, between the two pins where the strap connects. Measurement precision is critical: a tolerance of ±0.5mm is the maximum acceptable to ensure a proper fit without play or excessive tension.

Which strap is recommended for the Longines Lyre L4.361.2.11.7?

The Lyre L4.361.2.11.7 expresses its aesthetic potential with straps in alligator or lightweight calf leather (thickness 1.2-1.5mm). Black or dark blue alligator amplifies the authority of the stainless steel case; vegetable-tanned calf introduces patina and personal character over time. For versatile daily wear, shell cordovan or cotton NATO straps are equally valid choices, provided visual proportion remains refined and proportionate.

How do I change the strap on the Longines Lyre L4.361.2.11.7?

The strap is changed by removing the spring bars using a specialised extraction tool. Position the watch with the case facing upward, insert the flat end of the tool into the lateral hole of the spring bar, apply gentle pressure, and simultaneously withdraw the bar from its seat. Once the bar is removed, the strap disengages. Installation of the new strap follows the reverse process, ensuring the spring bar is fully seated and secure.

Can I use an aftermarket strap that is compatible with the Longines Lyre L4.361.2.11.7?

Yes. Any strap with a 15mm lug width is mechanically compatible. Selecting a high-quality aftermarket strap ensures that aesthetic proportion is preserved and durability is certified. Specialist brands offer options in leather, rubber, and textile that respect Longines' standards for constructive tolerance and material specification.

How long does a leather strap typically last on the Longines Lyre L4.361.2.11.7?

The lifespan of a leather strap depends on usage intensity, environment (humidity, temperature, UV exposure), and tanning quality. A high-quality alligator or shell cordovan strap, with moderate daily wear, lasts 4–6 years before replacement is required. Vegetable-tanned calf tends to wear more rapidly (2–4 years) but develops a patina that many collectors consider desirable. Regular maintenance (swift drying if wet, avoiding full immersion) significantly extends useful life.