SOLD!!! Omega Chronostop “Italian Jumbo” ref. 146.012

Brand: Omega

Model: Chronostop ref. 146.012

Year of production: +/- 1970

Diameter (without crown): 41mm




This Omega Chronostop is very suitable for someone who likes vintage watches but prefers a largers watch. At 41mm, this watch is very big for it’s age and is therefore also called “Jumbo” or “UFO”. The case had a brushed finish and an oval shape, fitted with a grey dial with applied markers. The metal bracelet is attached with a screwed-down ring, like Omega’s Dynamic series. The clasp also features an Omega logo. The Omega Chronostop reference 146.012 was made especially for Omega’s Italian agent Di Marchi and the cases were produced by Fontana. The movement is Omega cal. 920, a very well build movement with chronostop function. Pressing the pushers starts the second hand and pressing a second time stops it. When releasing the pusher, the second hands resets to zero immediately. The bracelet fits an 18 cm wrist when it is in the smallest hole of the clasp. Without extra bracelet links, the bracelet can be used for a wrist size up to 20 cm.


The watch is in very good condition. The case is unpolished and therefore shows some signs of wear like little scratches. The crown is original and signed with the Omega logo. The chronostop pushers has a small dent. The dial is in good condition but has a little scratch between 6 and 7 o’clock and a small scratch just above the centre hole. The hands are original and in very good condition. The movement is in very good condition, operates smoothly and runs accurate within 20-30 seconds a day. The movement has been fully serviced and the watch comes with a 1 year warranty.


Omega Watch Co was founded in La Chaux de Fonds in 1948 by Louis Brandt, under the name La Generale watch Co. The company collected watch parts manufactured by craftsmen in the region and assembled then into complete watches. The company started to focus on industrializing the manufacturing of watches and making parts interchangeable. In 1894, the caliber 19 was launched. Soon after, this calibre was named Omega, the letter that stands for perfection in the Greek Alphabet. in 1903, the decision was made to sell al watches produced by the company under the name Omega. 

In 1903 Omega was employing well over 800 employees and producing over 240.000 watches a year, making it the biggest Swiss watch manufacturer of that era. Omega won numerous medals for precision timekeeping in chronometers trials. As a result from these achievements, Omega was appointed official timekeeper for the 1932 Olympics. In 1948 the Seamaster was introduced, followed by the Constellation in 1952, the Speedmaster in 1957 and the De Ville in 1960. 

Additional information

Weight 0.100 kg
Dimensions 20 × 15 × 9 cm