Zenith. A stainless steel automatic calendar chronograph bracelet watch
Model: El PrimeroReference: NA 50038-3Date: Circa 1970Movement: 31-jewel Cal.3019 PHC automaticDial: Sunburst turquoise, applied ridged block hour markers, white outer 1/5th second divisions, date aperture between 4 and 5, oversized subsidiary dials at 3, 6 and 9 for seconds, 30 minute and 12 hour recording, polished pointed baton hands with white and luminous inserts, red centre chronograph handCase: Brushed and polished tonneau form, screw down back and crown, twin pushersStrap/Bracelet: Fitted brushed graduated 1372 Zenith linkBuckle/Clasp: Signed folding claspSigned: Case, dial & movement Size: 38mm Accompaniments: Zenith box