Model: SeamasterReference: 145.023Date: Circa 1985Movement: 17-jewel Cal.861 manual wind, No.47336293Dial: Blue, applied baton hour markers to bright blue surround, white edged subsidiary dials at 3, 6 and 9 for seconds, 30 minute and 12 hour recording with burgundy centres, raised outer tachymetre to silvered surround, white pointed baton hands, orange centre chronograph handCase: Brushed and polished tonneau form, screw down back, crown flanked by twin pushersStrap/Bracelet: Pale blue leather with orange stitchingBuckle/Clasp: Steel buckleSigned: Case, dial & movementSize: 44mm