ROLEX REF. 6238 PRE-DAYTONA SILVER SUNBURST DIAL STEEL
Rolex, « Chronograph », case No. 1205847, Ref. 6238. Made circa 1958.
Very fine and rare, water-resistant, stainless steel wristwatch with round button chronograph, registers and
tachometer with a stainless steel Rolex buckle.
Three-body, polished and brushed, curved lugs, inclined bezel, screwed-down case back and crown.
Silvered with applied steel baton indexes and luminous dots, subsidiary dials for the seconds, the 12-
hour and 30-minute registers, outer 1/5th seconds/minutes division. Luminous steel baton hands.
Cal. 72B, rhodium-plated, 17 jewels, straight-line lever escapement, monometallic balance adjusted to
three positions, shock absorber, self-compensating overcoil balance spring, Microstella regulating screws.