Cartier · Rotonde de Cartier

Strap for Rotonde de Cartier Perpetual Calendar White Gold / Silver

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
ReferenceW1556218
FamilyRotonde de Cartier
MovementCartier caliber 9422 MC hours, minutes, day / Night Indication | date, day, leap year, month, perpetual calendar
Year2012
CaseWhite Gold

Spring bar

Swiss Standard universal spring bars

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

Straps for the Rotonde de Cartier W1556218

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Rotonde de Cartier W1556218, seen from the bench

The Cartier Rotonde de Cartier W1556218 is a 40mm white gold case watch featuring the calibre 9422 MC automatic movement with perpetual calendar complication. The case is crafted in 18-carat white gold and displays a circular, minimalist design. The lug width measures 18mm, a precise dimension required for proper strap compatibility and essential before selecting any replacement accessory for this luxury timepiece.

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