Strap for Master Collection Chronograph

The Longines Master Collection L2.693.4.78.6 features a lug width of 20mm. This specification is critical for strap compatibility: only straps with a 20mm lug width will fit correctly into the case lugs without forcing or undesired mechanical play.

For a sports chronograph of this calibre, vegetable-tanned alligator leather represents the balance of choice: it delivers elegance without compromising durability. Alternatively, vegan veal leather offers everyday practicality, whilst premium nylon NATO straps emphasise the case's sporty character. For formal occasions, Burgundy shell cordovan creates striking chromatic contrast.

Strap replacement requires minimal tools: a springbar tool or plastic pick, and gentle pressure. Position the watch with the lug facing upward, insert the tool into the gap between lug and internal springbar, press gently downward to release the pin, extract the worn strap and insert the new one by aligning the lug to the hole. If you prefer to avoid risk, Casati Milano's services complete the change in 10 minutes with precision and no additional costs for clients purchasing the strap in-house.

Yes, any artisanal strap with a 20mm lug width is entirely compatible. The aftermarket permits aesthetic choices beyond the manufacturer's range: from aniline leather to tropical hides, to titanium deployante clasps. Milanostraps.it offers straps customisable in dimension, stitch colour and initials, enabling further stratification of the watch's character.

A quality natural leather strap (alligator, veal, vegetable-tanned) maintains aesthetic and functional integrity from 3 to 5 years with regular daily use, dependent upon sun exposure, humidity and preventive maintenance measures. Raw veals develop compelling patina over time. Casati Milano's warranty covers 18 months against manufacturing defects, recommending inspections every 2 years to extend lifespan through conservation treatments.