The Omega Seamaster Chronostop Ref. 145.007 is a distinctive vintage "jumbo" chronograph introduced by Omega in 1967. Often referred to as the "Driver's Watch," this model is highly regarded for its unusual single-pusher chronograph function and its oversized presence for the era.

• Case Size: 41mm in diameter (one of the largest vintage Omega models) with a 47mm lug-to-lug distance.

• Movement: Omega Caliber 865, a manual-wind movement featuring 17 jewels and a frequency of 21,600 BPH.

• Chronograph Function: A "fly-back" style single-pusher system at the 2 o'clock position. One press starts the orange seconds hand; a second press stops and immediately resets it to zero.

• Dial & Bezel: Typically features a matte black dial with a white minute/seconds track and an internal bezel calibrated for a tachymeter. Some rare versions include a decimal scale bezel.

• Case Details: Stainless steel tonneau-form case with a satin finish on top and polished chamfered edges. The screw-down case back features the iconic Seamaster hippocampus logo.

• Water Resistance: Originally certified for 6 bar (60 meters), though vintage examples are often no longer water-resistant.

• While the Ref. 145.007 was part of the Seamaster line, it utilized the Chronostop mechanism designed for short-interval timing (under one minute). It was marketed towards drivers and athletes for quick timing tasks, such as race laps or soccer matches. By 1969, many examples were produced with this reference, though the caliber 865 was eventually succeeded by caliber 920 in later Chronostop models.