VACHERON & CONSTANTIN
POCKET CHRONOGRAPH YELLOW GOLD
Vacheron & Constantin, Geneve, movement No. 369721,
case No. 228278. Made circa 1915.
Very fine and rare, 18K yellow gold, keyless pocket watch
with register and pulsometer.
Four-body, bassine, polished, button in the crown for
the start/stop/return- to-zero functions of the chronograph.
Hinged gold cuvette.
White enamel with Breguet numerals, outer red pulsometer
scale and 1/5th seconds track with 5 second Arabic
markers, subsidiary seconds and 30-minute register. Blued
steel epee hands.
Cal. 43 mm. 23 jewels, straight-line lever escapement,
cut bimetallic compensation balance, blued steel Breguet
balance spring, swan-neck micrometer regulator.