Strap for L.U.C Lunar Big Date White Gold

The lug width (ansa measurement) of the Chopard L.U.C 161969-1001 is 20 millimetres. This measurement represents the distance between the two lateral attachment pins of the case and determines compatibility with aftermarket straps. For accurate measurement, position the ruler between the inside edges of the two pins, excluding the width of the strap itself. A compatible strap should measure approximately 19.5–19.8 mm to ensure a precise fit without stress on the white gold case.

For the Chopard L.U.C 161969-1001, we recommend alligator leather in deep burgundy tones or vegetable-tanned calf in pearl grey. Alligator reflects Swiss luxury watchmaking tradition and develops natural patina over time; calf offers superior mechanical resistance and visible ageing. Both materials complement the neutral chromatic palette of the 18-karat white gold without competing with case finishing. MilanoStraps stocks 20mm leather straps in premium grades, customisable in length and initials.

To replace the strap on the 161969-1001, you will need a spring bar removal tool. Position the watch with the case facing upward, insert the flat blade of the tool into the small hole beneath the lug on the opposite side of the pin, and apply gentle downward pressure to compress the internal pin. Once released, the pin slides out smoothly. To reattach, align the new strap and reinsert the pin until you feel the click. We recommend working slowly to avoid scratching the white gold case. Our Casati Milano atelier offers this service by appointment.

Yes, any strap with a 20 mm lug width is compatible with the Chopard L.U.C 161969-1001. Always verify that the actual width of the strap is slightly less than 20 mm (approximately 19.5–19.8 mm) to ensure smooth insertion without stress on the case. MilanoStraps provides a selection of 20mm straps in alligator, shell cordovan, vegetable-tanned calf, and vulcanised rubber, all suitable for this white gold model. For specific length requirements or customisation, consult Casati Milano.

The lifespan of a leather strap depends on the material, daily wear, and environmental conditions. Premium-grade alligator with vegetable tanning may last 3–5 years with moderate daily use; shell cordovan, due to its structural density, can reach 4–7 years. Vulcanised rubber offers the longest lifespan, up to 8–10 years. Frequent exposure to water, perspiration, and ultraviolet rays accelerates ageing. We recommend allowing the strap to rest at least one day per week and occasionally applying protective products. All MilanoStraps straps benefit from an 18-month warranty, while Casati Milano provides assistance for early replacement if necessary.