A gentleman's stainless steel automatic wristwatch, Model: Oyster Perpetual Chronometer Bubbleback, Ref:2940, circa 1950,

细节
A gentleman's stainless steel automatic wristwatch, Model: Oyster Perpetual Chronometer Bubbleback, Ref:2940, circa 1950,
silvered dial with tapered baton markers and Arabic quarters, luminous hands, sweep centre seconds, Perpetual Chronometer self-winding movement, case with screw down winding crown, replaced screw back, dial, movement and case signed, 31mm.
See Colour Illustration (Plate 15)