Omega, a gentleman's unusual stainless steel rectangular wristwatch with hinged lugs, 1930's,

细节
Omega, a gentleman's unusual stainless steel rectangular wristwatch with hinged lugs, 1930's,
rectangular black dial with gilt Arabic numerals and subsidiary seconds, 15-jewel movement, rectangular case with hinged lugs, dial, movement and case signed, 31mm x 20mm.