Omega. A rare and early stainless steel single button chronograph wristwatch with enamel dial

Omega. A rare and early stainless steel single button chronograph wristwatch with enamel dial
Signed Omega, movement no. 9'377'478, case no. 8'846'026, manufactured in 1935
Cal. 33.3 CHRO gilt-finished mechanical movement, 17 jewels, white enamel dial, Breguet numerals, outer blue, red and inner green spiral scales, two sunken subsidiary dials for constant seconds and 30 minutes register with three coloured zones, circular case, snap on back, oval chronograph button in the band, case, dial and movement signed
38 mm. diam.