Technical Archive

Cartier
Tank W5310003— lug 18mm

Cartier Tank W5310003: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Tank Anglaise 29.8 Pink Gold / Silver / Bracelet

Artisanal Note

"This model requires a precise 18mm lug width to preserve the original sartorial balance."

Technical Specifications

Cartier W5310003
Lug Width
18 mm

The essential strap measurement.

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Reference

W5310003

Movement

Cartier caliber 049 Hours, Minutes, Seconds | Date

The Heritage

The Tank represents one of Cartier's iconic models, characterized by the distinctive rectangular case. It is powered by the Cartier 049 caliber with hour, minute, second and date indications. The W5310003 reference maintains the classic proportions of the original design with the crown integrated into the case profile.

FAQ

What is the lug width of the Cartier Tank W5310003?

The lugs of the Cartier Tank W5310003 measure exactly 18 millimeters in width. This dimension is proportionally calculated to the 29.80mm case and determines the compatibility of any aftermarket strap. To verify the measurement, remove the original strap and measure the space between the two lugs with a caliper, perpendicular to the dial plane.

Which strap is recommended for the Tank W5310003?

The choice depends on intended use and desired aesthetics. Cognac alligator amplifies the nocturnal sophistication of rose gold. Black calf creates maximum formal contrast. Dark blue NATO offers modern everyday versatility. Black rubber represents the sporty and contemporary solution. Milano Straps offers all these options in 18mm, customizable for fit and details.

How do you change the strap on the Cartier Tank W5310003?

The Tank W5310003 uses removable lugs (not fixed bars). To replace the strap, insert a flat tool (spring bar tool) into the small opening under the lug, gently compress the internal spring to release the lug from its seat, then remove the old strap. Repeat on the other side. Install the new strap by aligning the holes with the lugs and pressing until you hear the locking click. If preferred, Casati Milano offers strap change service by appointment.

Can I use an aftermarket strap from a different brand on my Tank W5310003?

Yes, provided the strap is certified 18mm lug width. However, for a perfect fit and aesthetics that respect original proportions, it is essential that the strap thickness at the lug be consistent with technical specifications. Milano Straps guarantees full compatibility on 18mm straps and also offers customizations including initials and choice of stitching thread to elevate the quality of the pairing.

How long does a leather strap last on the Cartier Tank W5310003?

The lifespan of a leather strap depends on frequency of use, environmental conditions, and leather quality. Alligator and Tannino calf, if properly maintained (avoiding excessive moisture and heat), provide 3-5 years of daily wear before showing visible deterioration. The patina that develops over time is part of the character and authenticity of the leather. Casati Milano provides an 18-month warranty on straps crafted in-house and offers regeneration services to extend useful life.

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 →

By appointment only · Milan

The atelier's website: casatimilano.com