rolexのインスタグラム(rolex) - 8月11日 00時00分

For the Yacht-Master II, Rolex devised a new and unique horological complication: a programmable countdown with a mechanical memory and on-the-fly synchronization, designed specifically for the start sequence of regattas. Rolex engineers devoted 35,000 hours to developing this complication, which took the form of a new movement, calibre 4161.
#Rolex #YachtMasterII

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