Zenith. An 18K gold automatic calendar chronograph wristwatch

El Primero, Circa 1950
Zenith. An 18K gold automatic calendar chronograph wristwatch
Model: El Primero
Date: Circa 1950
Movement: 31-jewel Cal.3019 automatic
Dial: Silvered, applied gilt baton hour markers with luminous inserts, black outer 1/5th second divisions, white outer tachymetre scale on slate grey surround, slate grey subsidiary dials at 3, 6 and 9 for seconds, 30 minute and 12 hour recording, date aperture between 4 and 5, pointed baton hands with black and luminous inserts, red centre chronograph hand
Case: Polished round, snap on back, signed crown flanked by twin chronograph buttons, No.485D487
Strap/Bracelet: Black lizard leather
Buckle/Clasp: Signed gold plated buckle
Signed: Case, dial & movement
Size: 37mm