Ballon Bleu de Cartier 42 Automatic Carbon

In Context

At 42.1 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 13 mm it is a tall case, and it will catch on a cuff. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. Rated to 30 m, it is protected against rain and splashes and nothing beyond that.

The movement winds itself from the motion of your wrist. 40 hours of reserve carries it overnight, but not through a weekend in a drawer. At 28,800 vph the seconds hand advances 8 times a second.

WSBB0015 stands on its own in this catalogue — no other reference here shares its base number. It pairs a black guilloche dial with a stainless steel case. Introduced in 2007.

Self-winding movement with central seconds and date, introduced with the 2015 Cartier Clé collection.

5 other watches in the library run the Cartier 1847 MC.

Cartier

Tank Must Extra Large Automatic Stainless Steel / Silver / Bracelet

WSTA0053 · 31 mm

Cartier

Ronde Croisière de Cartier Stainless Steel / Silver

WSRN0002 · 42 mm

Cartier

Tank Must Extra Large Automatic Stainless Steel / Silver

WSTA0040 · 31 mm

Cartier

Ronde Croisière de Cartier Stainless Steel / Grey

WSRN0003 · 42 mm