A gentleman's stainless steel and gold automatic wristwatch, Model: Oyster Perpetual Chronometer "Bubbleback", Ref:3458, circa 1940,

细节
A gentleman's stainless steel and gold automatic wristwatch, Model: Oyster Perpetual Chronometer "Bubbleback", Ref:3458, circa 1940,
black dial with gilt Arabic numerals, subsidiary seconds, self-winding Perpetual Chronometer movement No.45228, steel case with gold bezel, screw down winding crown, screw back, dial, movement and case signed, 32mm.