A stainless steel chronograph wristwatch

SIGNED ROLEX, MODEL NO. 2508, CASE NO. 418312, 1930S

细节
A stainless steel chronograph wristwatch
Signed Rolex, model no. 2508, case no. 418312, 1930s
The nickel plated movement jewelled to the centre with monometallic balance, the matt white dial with baton numerals, outer tachymetric and telemetric scales, subsidiary dials for running seconds and elapsed minutes, luminous hands, sweep centre seconds operated by two flat pushers in the band, in circular steel case with flat steel bezel and snap on back, case, dial and movement signed
35 mm. diam.