Swiss platinum pocket watch retailed by cartier Circa 1930

Platinum watch with a platinum cartier pencil
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A Swiss open faced platinum watch, retailed by cartier, with a platinum cartier pencil, circa 1930, manual winding nickel lever movement, 19 jewels.
Silvered dial, applied Breguet numerals, subsidiary seconds, snap back, case signed by maker and hand stamped with Cartier reference numbers, dial signed by retailer, movement signed by maker, with a platinum and 14 gold chain with Cartier retractable platinum pencil.
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Diameter: 44 mm
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Signed: Jules Jurgensen