Strap for Master Collection Big Date

The lug width of the L2.648.4.78.3 is 20mm, measured from inner edge to inner edge of the spring bar. This measurement is standardised at both positions (upper and lower lug), ensuring universal compatibility with all straps designed for this width.

For the L2.648.4.78.3, we recommend an alligator leather in vegetable tanning, which fully respects the minimalist and refined identity of the watch. Alternatively, vegetable-tanned calf offers chromatic versatility, whilst Japanese shell cordovan guarantees exceptional wear resistance and develops a characteristic patina over time.

Remove the spring bars using a dedicated spring bar tool. Position the tool beneath the spring bar, apply controlled downward pressure, and slide the bar out of its slot. Insert the new strap by realigning the spring bars into the case slots and confirming engagement with a gentle click.

Yes, any strap with a 20mm lug width is compatible. Ensure the strap thickness aligns with case geometry (approximately 3-4mm) and that the material is of artisanal quality to maintain the watch's aesthetics and wearing comfort.

Durability depends on the material and intensity of use. Vegetable-tanned alligator lasts 5-7 years with moderate daily wear. Japanese shell cordovan easily exceeds 10 years due to inherent strength. Vegetable-tanned calf requires greater maintenance and lasts 3-4 years. Extreme climatic conditions (high humidity, prolonged direct sunlight) shorten lifespan.