Technical Archive

Chopard
L.U.C 161973-9001— lug 20mm

Chopard L.U.C 161973-9001: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

L.U.C Perpetual Chrono Platinum / Blue

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Chopard 161973-9001
Lug Width
20 mm

The essential strap measurement.

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Reference

161973-9001

Movement

Chopard caliber L.U.C 03.10-L Day / Night Indication, Hours, Minutes, Small Seconds | Big Date, Day, Leap Year, Month, Perpetual Calendar | Chronograph, Column wheel, Flyback | Moonphase | Chronometer

The Heritage

The Chopard L.U.C Perpetual Chrono Platinum / Blue Ref. 161973-9001 is a 45.00mm platinum case watch with a 20mm lug width. It features the in-house Chopard L.U.C 03.10-L movement, a COSC-certified chronometer with over 300 components. The watch includes a perpetual calendar with month, day, large date, and leap year indication, day-night display, chronograph with column and flyback function, and moon phase complication. Water-resistant to 35 ATM, this timepiece represents independent Swiss watchmaking excellence from the L.U.C collection established in 1992.

FAQ

What is the lug width of the Chopard L.U.C Ref. 161973-9001?

The lug width of the Chopard L.U.C 161973-9001 measures precisely 20mm. This dimension allows compatibility with a wide range of artisanal straps. To verify, consult the case back of the watch or the original Chopard certificate.

What is the best strap for the Chopard L.U.C 161973-9001 in platinum?

For the L.U.C in platinum, we recommend Mississippi alligator in dark brown shades (coffee, chocolate) or vegetable-tanned calf. These materials create appropriate aesthetic contrast with the noble case and age gracefully over time. A textured black rubber represents a versatile contemporary alternative.

How do you change the strap on the Chopard L.U.C 161973-9001?

The strap is changed using a spring bar tool. Position the tool under the pin, apply pressure to release the internal spring, and extract the pin from the lugs. The new strap is inserted in reverse: thread the pin on one side, align it, then compress until you hear a locking click. For delicate operations, contact Casati Milano.

Is the strap on the Chopard L.U.C 161973-9001 compatible with other 20mm watches?

Yes, any 20mm strap is compatible with the Chopard L.U.C 161973-9001, as the lug width is the universal standard. However, we recommend choosing materials and styles that respect the dignity of a platinum timepiece with perpetual complications.

How long does a leather strap last on a 20mm lug?

A premium leather strap (alligator or vegetable-tanned calf) typically lasts 5-7 years with regular wear. Longevity depends on frequency of use, exposure to humidity and perspiration, and periodic maintenance. Artisanal straps from Casati Milano guarantee 18 months of defect coverage; replacement is economical thanks to the standardized 20mm lug width.

The next step

The right strap isn’t chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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