Rolex Datejust 6604

Reference 6604 is a rare, transitional 36mm Oyster Perpetual Datejust model produced for a short period from approximately 1956 to 1959. The watch is powered by the Rolex Caliber 1065, a non-quickset automatic movement whose slimmer architecture enabled a more streamlined case profile compared to earlier ‘Bubbleback’ designs. This reference was produced in solid 18k gold (yellow or rose), and the 04 designation specifically denotes a smooth, polished bezel. Key technical features of the dial often include gilt printing, ‘dagger’ hour markers, and a ‘roulette’ date wheel. Its significance lies in its combination of a precious metal construction with a minimalist smooth bezel on the technically important slimmed-down case platform.