Cartier · Tank Française

Strap for Tank Française Piccolo (SM) W51007Q4

Takes 15 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width15 mm
Case diameter20 mm
ReferenceW51007Q4
FamilyTank Française
MovementQuartz
Year1996–2022
CaseYellow Gold, Stainless Steel
CrystalSapphire
Water resistance30m (3 BAR)

Spring bar

Swiss Standard universal spring bars

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

Frequently asked questions

What is the exact lug width of the Cartier Tank Française W51007Q4?

The lug width of the Cartier Tank Française W51007Q4 is 15mm. This measurement represents the internal space between the case lugs where the strap is attached via spring bars. It is essential to verify this measurement before purchasing a compatible strap to ensure proper fit and stability.

What is the best strap choice for the Cartier Tank Française W51007Q4?

For the Tank Française W51007Q4, alligator leather is the most elegant and historically appropriate choice. A cognac alligator enhances the yellow gold case, while black offers maximum formality. Vegetable-tanned calf is a versatile alternative that develops natural patina over time. For summer wear, a lightweight cotton NATO strap provides urban versatility.

How do I change the strap on my Cartier Tank Française W51007Q4?

Changing the strap on the W51007Q4 requires a simple tool (a small screwdriver or dedicated spring bar remover). Locate the spring bars on the case sides, apply inward pressure to release the pin, remove the old strap, and insert the new one by aligning the spring bars with their slots. Apply uniform pressure to avoid scratching the case.

Can I use an aftermarket strap on my Tank Française W51007Q4?

Yes, any strap with a 15mm lug width is compatible with the W51007Q4. High-quality aftermarket straps (artisanal leather, NATO, rubber) mount identically to the original Cartier strap. Choosing different leather types and finishes allows personal stylistic customisation whilst fully maintaining the watch's warranty (the strap is not covered by manufacturer warranty).

How long does a leather strap last on the Cartier Tank Française W51007Q4?

A high-quality artisanal leather strap for the Tank Française W51007Q4 typically lasts 3-5 years with daily use, provided regular maintenance is performed. Longevity varies based on tanning type (vegetable-tanned ages naturally; synthetic resists external elements better), frequency of wear, and climate conditions. Periodic strap replacement is routine care for a luxury watch and allows aesthetic renewal without case intervention.

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.

Request an appointment →

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