Chopard
L.U.C 161902-5057— lug 18mm

The Chopard L.U.C 161902-5057 features an 18mm lug width, which is the standardized distance between the case attachment points (lugs) that determines strap compatibility. This measurement is proportionate to the 39.50mm case diameter and ensures correct aesthetic balance on the wrist.

The ideal strap depends on usage and personal preference. For maximum elegance, we recommend natural alligator with vegetable tanning and hand-sewn stitching; for daily wear, dark brown or black European calf leather; for warm months, cognac shell cordovan. The white gold case pairs perfectly with dark and warm tones.

The strap is changed using a spring bar remover tool, which accesses the fastening screws (spring bars) at the case lugs. Gently insert the tool's tip into the small lateral slot of each lug, apply vertical pressure, and extract the bar. Next, attach the new strap and re-secure the springs. If you lack experience, consult a certified watchmaker.

Yes. The 161902-5057 accepts any strap with an 18mm lug width, regardless of manufacturer. Artisanal straps in alligator, calf, cordovan, or rubber are fully compatible if made to proper width specifications. We recommend models with standard spring bars to avoid attachment issues.

A high-quality leather strap (alligator, European calf, shell cordovan) typically lasts 3–5 years with daily wear if regularly maintained. Longevity increases if rotated with other straps, allowing leather to breathe. Frequent exposure to moisture and perspiration shortens lifespan; overnight protection extends it considerably.