Illustration. The seconds hand sweeps, like the real movement.
Why it's interesting
The Tank in its purest form: Louis Cartier's 1917 rectangle in rose gold, a silvered dial of Roman numerals, blued sword hands and a sapphire cabochon on the crown. The hand-wound 1917 MC is a tiny tonneau-shaped calibre Cartier designed for its shaped cases, which keeps the watch just 6.6 mm thick — the dress watch every other rectangle is measured against.
Watch DNA. Filled tags are editorial; outlined tags come from the specifications.
The numbers
Verified specificationsSize
- Diameter
- 25.5mm
- Lug to lug
- 33.7mm
- Thickness
- 6.6mm
- Lug width
- —
Also in the Tank family
Because you like this…
Chosen for shape, size, colour, character and price. Rarely the same brand twice.
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About this page
Verified specifications, checked September 2026
Dimensions, water resistance, movement and crystal were checked against the sources below.
Dimensions (33.7 × 25.5 mm; diameterMm = case width, lugToLugMm = case length), 6.6 mm, 3 bar, mineral crystal (stated by Cartier on both the German and US pages), sapphire-cabochon crown and price from Cartier Germany; calibre 1917 MC named on Cartier's US page. The launch year of this reference was not confirmed. Drawing: the brancards are simplified and the Roman numerals sit on an ellipse inside the rectangle.
The illustration is a bezelga rendering generated from the specifications. It is not a photograph and may simplify details such as logos, text and finishing.
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