Ca. Ø17mm, total weight with chain ca. 25g, 18K gold, blue engine turned enamel, chain also with blue engine turned enamel with golden paillon inlays, Oriental pearls and diamonds, fine Geneva lever movement, No.15450, signed enamel dial, one hand replaced, movement starts ticking, but needs cleaning. It is extremely rare to find these wonderful enamel watches in such original condition with original chain and box. Golay was, along with Patek Philippe, one of the few Geneva manufacturers of these special watches that have Geneva signatures. Constantin Louis Detouche was born in Paris on 20 October 1810, was appointed court watchmaker and was a knight of the legion of honour.