Reference:6234: Difference between revisions
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Deep audit: ground 6234 chronology, production, movement, dial and auction claims |
Finish chronology and movement wording after 6234 audit |
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==Where it sits in the line== | ==Where it sits in the line== | ||
The 6034 precedes the 6234 in the Oyster chronograph sequence, and the 6238 follows it. The references share a three-register chronograph layout, but case construction, movement descriptions, and dial details vary between records. Some literature connects late 6234 Cal. 72B descriptions with early 6238 examples; the transition should be checked against the individual movement. | |||
The 6234 predates the Cosmograph 6239. Sources generally place the Cosmograph designation with the 6239 in 1963 and the Daytona dial signature later; the 6234 itself has neither name. | The 6234 predates the Cosmograph 6239. Sources generally place the Cosmograph designation with the 6239 in 1963 and the Daytona dial signature later; the 6234 itself has neither name. | ||
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The movement is a Valjoux 72-family, hand-wound, column-wheel chronograph with three registers. Auction and reference literature use Cal. 72, 72A, and 72B descriptions; late 6234 and early 6238 transitions are a catalogue and movement-marking question. | The movement is a Valjoux 72-family, hand-wound, column-wheel chronograph with three registers. Auction and reference literature use Cal. 72, 72A, and 72B descriptions; late 6234 and early 6238 transitions are a catalogue and movement-marking question. | ||
The | The cited Valjoux 72 descriptions use an 18,000-vph frequency and manual winding. Jewel counts and ancillary features should be checked against the individual movement. A historical retail price is omitted here because it does not identify the reference’s construction or variant. | ||
==Dial map== | ==Dial map== | ||