About this lot

Description

Omega - A Swiss silver open faced chronograph pocket watch,

circa 1920, the signed white dial, 43mm diameter, with black Arabic numerals and inner ring of red 24 hour Arabic numerals, gold coloured moon style hands and blued centre sweep with subsidiary running seconds dial at 6 o'clock, chronograph minutes at 12 o'clock and chemin de fer chapter ring, signed crown wind movement number 5585206, the rose coloured pumpkin shaped winder with integral start/stop/reset plunger, case, 51mm diameter, decorated all over with niello chequerboard design, verso hinged at 6 o'clock, inner apparently unmarked, the cuvette (and case rim) with French import mark for silver together with an indecipherable retailer's mark, numbered 6694586, 87g gross

Niello is a black mixture, usually of sulphur, copper, silver and lead, used as an inlay on engraved or etched metal, especially silver. It is added as a powder or paste, then fired until it melts and flows or is pushed into the engraved lines in the metal. It hardens and blackens when cool, and the niello on the flat surface is polished off to show the filled lines in black, contrasting with the polished metal around it.

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