Until the 1930s, having the time always with you meant wearing a pocket watch, usually on a waistcoat chain. Cartier, that had developed the design of its own watches since Louis arrived in 1898, focused on making objects of genuine elegance. It created a style of dial that it would never abandon with radiating Roman numerals and a rail-track minute circle. Certain pocket watches were pieces of jewelry paved with precious stones, others were "Mystery" models like the fascinating clocks with the same name.

POCKET WATCH WITH DOUBLE CHAPTER RING

CARTIER PARIS, 1911

Platinum, calibré-cut sapphires. 

Round LeCoultre caliber 140 movement, fausses Côtes de Genève decoration, rhodium-plated, 8 adjustments, 18 jewels, Swiss lever escapement, bimetallic balance, Breguet balance spring.

Diameter: 4.51 cm

POCKET WATCH

CARTIER PARIS, 1914

Platinum, onyx cabochon. 

Round LeCoultre caliber 139 movement, fausses Côtes de Genève decoration, rhodium-plated, 8 adjustments, 18 jewels, Swiss lever escapement, bimetallic balance, Breguet balance spring.

4.0 x 4.0 cm

MYSTERY POCKET WATCH

CARTIER PARIS, 1931

Yellow gold, crystal, black enamel. 

Engraved on back of case: November 1934. 

Rectangular LeCoultre caliber 409 basic movement with additional plate, vertical striped decoration, rhodium-plated, 15 jewels, Swiss lever escapement, bimetallic balance, flat balance spring.

4.10 x 4.10 cm