Chopard · L.U.C

Strap for L.U.C Flying T Twin Platinum - Baguette / Black

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter40 mm
Reference171978-9001
FamilyL.U.C
MovementChopard caliber L.U.C 96.24-L hours, minutes | chronometer, tourbillon escapement
Year2019
CasePlatinum

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the L.U.C 171978-9001

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The L.U.C 171978-9001, seen from the bench

The Chopard L.U.C features the in-house L.U.C 96.24-L calibre with a tourbillon escapement and chronometer certification. The movement displays hours and minutes with the precision guaranteed by the tourbillon regulation. The reference 171978-9001 represents the Swiss brand's interpretation of high-end mechanical watchmaking.

Frequently asked questions

What is the lug width of the Chopard L.U.C 171978-9001?

The lug width of the Chopard L.U.C 171978-9001 is 18 millimetres. This dimension represents the exact distance between the two suspension pins of the case. To verify strap compatibility, measure with precision the space between these two pins: any deviation from the 18 mm measurement will render the strap incompatible with the case.

Which strap is most suitable for the Chopard L.U.C 171978-9001?

For the Chopard L.U.C 171978-9001 in platinum, an alligator strap with vegetable tanning represents the most coherent choice. The natural and rectilinear grain of this leather creates aesthetic continuity with the pure lines of the case. Shell cordovan constitutes the refined alternative for those who prioritise colour permanence over time, developing a characteristic natural lustre. Avoid textile NATO straps, which would visually compromise the proportions of the case.

How does one change the strap on the Chopard L.U.C 171978-9001?

The strap of the Chopard L.U.C 171978-9001 is changed using a specialised tool (spring bar tool or pin extractor). Insert the small end of the tool into the thin recess positioned beside each pin, press gently to release the internal spring and remove the pin. Subsequently, insert the new strap by aligning the pins with the case housing and secure with pressure until it clicks. It is recommended to have this operation performed at an official service centre to avoid damage to the platinum lugs.

Is an aftermarket strap compatible with the Chopard L.U.C 171978-9001?

Yes, any strap with an 18 millimetre lug width is compatible with the Chopard L.U.C 171978-9001. Quality aftermarket straps guarantee the same mechanical performance as original straps, provided they are constructed from noble materials (alligator, shell cordovan, calf) and appropriate finishes. Always verify that the strap thickness at the lug area is proportionate (ideally 3-4 mm) to avoid excessive play in the case.

What is the average lifespan of a leather strap for the Chopard L.U.C 171978-9001?

An alligator or shell cordovan strap of artisanal quality guarantees durability of 8-12 years with moderate daily wear. Vegetable-tanned alligator develops a protective patina that increases mechanical resistance over time. Shell cordovan, owing to the robust fibrous structure of the equine membrane, frequently exceeds 12 years whilst maintaining elasticity. Aniline calf and vegetable tanning require periodic maintenance (conditioning) and last 6-10 years. The frequency of replacement depends on usage: wrists wearing the watch daily in stressful environments (humidity, temperature fluctuations) will require more frequent replacements.

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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Casati Milano · Via XX Settembre 15, Milan · by appointment only