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An incredibly rare, attractive and historically important yellow gold tourbillon pocket watch with enamel dial and Guillaume balance awarded First Prize at the Geneva Observatory trials in 1932 and 1944
1932
55mm. Diameter
Case, dial and movement signed
Estimate
CHF60,000 - 80,000
€55,600-74,100
$59,500-79,300
Sold for CHF87,500