拍品专文
The present chronometer is possibly a so-called "school watch", featuring one of the watchmaking complications a student has to be able to construct in order to be recognized as a watchmaker.
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UNSIGNED, MOVEMENT NO. 1639, CIRCA 1930
细节
Swiss. An unusual openface keyless pocket chronometer
Unsigned, movement no. 1639, circa 1930
Nickel-finished jewelled movement, spring detent escapement, bimetallic compensation balance, white enamel dial, Roman numerals, subsidiary seconds, circular case, glazed display back, movement numbered
58 mm. diam.
Unsigned, movement no. 1639, circa 1930
Nickel-finished jewelled movement, spring detent escapement, bimetallic compensation balance, white enamel dial, Roman numerals, subsidiary seconds, circular case, glazed display back, movement numbered
58 mm. diam.