Early Chronographs (pre-Daytona) 4500 — 9K Gold

Valjoux 23

13-ligne hand-woundManual windingWinding a mechanical watch’s mainspring by turning the crown. Some automatic movements also allow manual winding. column-wheelColumn wheelA chronograph control system that coordinates the operating levers; a cam system is an alternative construction. chronographChronographA watch function for starting, stopping and resetting an elapsed-time measurement independently of the ordinary time display., the two-register base of Rolex’s early chronographsA watch function for starting, stopping and resetting an elapsed-time measurement independently of the ordinary time display. including the 3484, 3525 and 4500.