El Primero Chronomaster, Ref:02.0240.410/01, Movement No.167641, Circa 2001
31-jewel Cal.410Z automatic movement with column wheel chronograph, silvered dial with applied polished Roman numeral and faceted arrow hour markers, black outer 1/5th second divisions and 400 to 60 tachymeter scale, polished faceted lance hands and centre chronograph hand, subsidiary dials at 3, 6 and 9 for running seconds, 30 minute and 12 hour recording, month aperture at 2, date aperture between 4 and 5, moon phase aperture in the subsidiary dial at 6, day aperture at 10, polished round case with back secured by 8 screws, stepped bezel, signed crown flanked by twin rectangular chronograph buttons, quickset buttons set into the band at 8 and 9, fitted brown leather strap with white stitching and deployment clasp, together with fitted Zenith red box, outer card, COSC certificate, instruction booklet, guarantee certificate and stainless steel Zenith link bracelet with signed deployment clasp, case, dial and movement signed
40mm.