Omega Seamaster Chronostop 145.007

Omega Seamaster Chronostop Ref. 145.007 circa 1967

A large stainless steel chronograph wristwatch Omega first introduced the Ref. 145.007 Chronostop in 1967, and the serial number of the present watch places it towards the beginning of the model’s production. Measuring 41 mm across the case, it is among the largest vintage wristwatch models produced by Omega. The chronograph mechanism operates in a manner similar to a flyback: the orange chronograph seconds hand is started via the pusher at the case side, and a second press automatically stops and resets the hand to the 12 o’clock position. This allows the orange hand to be used either as a constant seconds display or to time intervals of up to one minute. The inner bezel is calibrated with a tachymeter scale, enabling the measurement of speed over a fixed distance. Specifications [M] Omega calibre 865 manually wound movement, lever escapement, 17 jewels, mono-metallic balance, 21,600 BPH, Incabloc shock absorber [D] matt black dial, chamfered chapter ring, raised faceted hour indexes, luminescent dots above, black/white luminescent hands (please note luminescence will have naturally dulled with age), orange chronograph seconds, matt white outer ring for minutes/chronograph seconds, inner bezel calibrated for tachymeter [C] large stainless steel case with satin finished top, polished chamfered edge, satin finished case sides, screw-down back, the satin finished centre with Omega Seamaster logo, Omega winding crown, Omega crystal [S] case, dial, movement, crown and crystal signed Measurements 41mm width excluding crown 47mm length including lugs 13mm depth to centre of crystal 22mm strap width/lug gauge Accompaniments One Year guarantee – serviced by an Omega approved service centre Black Bough certificate, leather watch pouch and polishing cloth