Omega. A large and attractive stainless steel chronograph wristwatch with black dial

Omega. A large and attractive stainless steel chronograph wristwatch with black dial
Signed Omega, ref. CK987, movement no. 9'389'535, case no. 9'979'879, manufactured in 1941
Cal. 33.3 CHRO mechanical movement, 17 jewels, black dial, Arabic numerals, inner gilt slide rule, telemetre scale, outer gilt five minute divisions and tachometer scale, two engine-turned subsidiary dials for constant seconds and 30 minutes register, large circular case, snap on back, two oval chronograph buttons in the band, case, dial and movement signed
38 mm. diam.