Rolex, Chronograph Pre-Daytona, Ref. 6238, n° 122xxxx, around 1965
A rare & very fine stainless steel 3-register chronograph, permanent seconds, 30 mn & 12h counters. Exceptionnal black dial, applied indexes, outer minute track and tachometer scale. Screw-back & crown, manual winding movement caliber 72 B. Riveted Oyster band with deployant buckle.
Diam 36 mm