Longines
Master Collection L2.357.5.89.7— lug 18mm
Longines Master Collection L2.357.5.89.7: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 18mm lug width to preserve the original sartorial balance."
Technical Specifications
Longines L2.357.5.89.7The essential strap measurement.
Browse 18mm straps →L2.357.5.89.7
Longines caliber L888.5 Hours, Minutes, Seconds | Date | Chronometer
The Heritage
Compatible Straps
Selected for the 18mm lug width of the Master Collection
FAQ
What lug width does the Longines Master Collection L2.357.5.89.7 have?
The Longines Master Collection L2.357.5.89.7 features an 18mm lug width, a specific and non-standardised dimension. This width is calibrated to the proportions of the 34mm case and requires straps constructed specifically for this measurement. To verify strap compatibility, measure the internal width of the case lug using a digital calliper.
Which strap is most suitable for the Longines Master Collection L2.357.5.89.7?
For the L2.357.5.89.7, the ideal strap is crafted from superior-quality alligator leather, whose elegantly marked grain synchronises perfectly with the rose mother-of-pearl dial. Alternatively, vegetable-tanned calf leather offers a patina that intensifies over time. For formal occasions, a cognac or dark brown alligator enhances the rose gold case without aesthetic compromise.
How do I change the strap on the Longines Master Collection L2.357.5.89.7?
Strap replacement requires a specialised tool (spring bar tool) or spring bar remover. Position the case horizontally, insert the tool tip into the spring hole, gently compress and extract the spring bar. Repeat on the opposite side. This procedure requires no particular technical skill but must be performed carefully to avoid scratching the case.
Can I wear an aftermarket strap that is compatible with my Longines Master Collection L2.357.5.89.7?
Yes, it is possible to wear aftermarket straps of adequate construction quality, provided they are manufactured for the 18mm lug width. Milan Straps offers a collection of 18mm straps customisable in noble leathers (alligator, calf, shell cordovan) with artisanal finishes. The Casati Milano atelier provides bespoke straps with personal leather selection and direct updates.
What is the average lifespan of a leather strap for the Longines Master Collection L2.357.5.89.7?
The lifespan of a leather strap depends on tanning quality and intensity of use. An alligator or vegetable-tanned calf strap, worn daily, maintains structural integrity for 3-5 years. Under moderate use (occasional wear), longevity extends beyond 5 years. Natural ageing of the leather is a desirable process that contributes to the overall aesthetic of the watch, creating a unique patina over time.