Platinum & diamond Chronometer no. -
Case: Platinum, bezel with diamonds
Dial: Silver with diamond Roman numerals and fingers, signed Cartier
Movement: 16 or 17''', (in all probabillity executed with) 18 jewels, all adjustments and 2 x Poincon de Geneva quality seals
1920 circa - Niton, Geneva
1928 - Cartier, Paris
2004 - Bonhams
Bonhams, Lot 568, June 2004 auction, Los Angeles Swiss platinum, diamond, and enamel pocketwatch, circa 1920, case: platinum, bezel: set with diamonds, side of case with black enamel, dial silvered, diamond roman numbers, diamond set 'Feuille' hands, diameter 43 mm, 18k white gold chain.
Notice; the second picture (below) with the movement and back cover is taken from another pocket watch by Niton with movement serial number 3000 made in 1928 for Oscar Fresard, Lucerne, but in all probability, the Cartier pocket watch as mentioned above is executed with this type of caliber/ movement lay out.