Longines
Master Collection L2.257.5.12.7 (aka: L22575127)— lug 15mm
Longines Master Collection L2.257.5.12.7 (aka: L22575127): 15mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 15mm lug width to preserve the original sartorial balance."
Technical Specifications
Longines L2.257.5.12.7 (aka: L22575127)The essential strap measurement.
Browse 15mm straps →L2.257.5.12.7 (aka: L22575127)
Longines caliber L595 Hours, Minutes, Seconds | Date
The Heritage
FAQ
What is the lug width of the Longines Master Collection L2.257.5.12.7?
The lug width of the Longines Master Collection L2.257.5.12.7 is 15mm. This width is standard for reduced-diameter timepieces (29mm) and requires proportionate straps to maintain aesthetic balance. Always verify the measurement with a ruler or digital calliper, measuring from shoulder to shoulder of the lug attachment on the inner side.
What is the best strap for the Longines Master Collection L2.257.5.12.7?
Polished alligator represents the optimal choice for this dress watch: the geometric grain enhances the case, and the patina that develops over time creates a unique dialogue with the silvered dial. Alternatively, anilina calf leather offers natural suppleness, whilst shell cordovan guarantees exceptional durability (10+ years) with deep patina. Vegetable tanning represents a compromise between aesthetics and sustainability.
How do I change the strap on my Longines Master Collection L2.257.5.12.7?
To change the strap on 15mm lugs: 1) Use a spring bar tool or lug removal instrument; 2) Position the tip in the spring seat and push downward; 3) Gently extract the elastic bar; 4) Remove the old strap; 5) Insert the new strap's ears into the attachments; 6) Reinsert the bar ensuring it locks on both sides. If you are inexperienced, consult a specialised watchmaker to avoid damage to the case.
Are there aftermarket straps compatible with the Longines Master Collection L2.257.5.12.7?
Yes, all straps with a 15mm lug width are compatible with the Longines Master Collection L2.257.5.12.7. It is advisable to select artisanally crafted straps using quality leathers (alligator, calf, shell cordovan) from specialised manufacturers, which ensure not only constructive compatibility but also aesthetic balance. Always verify that the strap has the correct length of ears (approximately 70-75mm for the wearing side).
How long does a leather strap last on the Longines Master Collection L2.257.5.12.7?
Durability depends on material and frequency of use. A quality alligator strap lasts 5-7 years with frequent daily use. Shell cordovan, owing to collagen density, exceeds 10 years. Anilina calf offers 3-4 years of intensive wear. Vegetable tanning reaches 4-6 years. Regular maintenance (preventative impregnation, drying after moisture contact) significantly extends useful life. For rubber straps, average lifespan is 8-10 years without aesthetic degradation.