Service - tested and working Working perfectly. A wonderful Omega Electronic F300 Geneve Chronometer from 1970s Day Date Like many other watch manufacturers in the 1970s, Omega used the ESA 9162 (date only) and ESA 9164 (day and date) tuning fork movements in many of its watches. The ESA 9164 movements are often considered the “Rolls Royce” of tuning fork movements. They were designed by Max Hetzel, who had previously worked at Bulova; he was also responsible for Accutron 214. In May 1972, ESA also released a chronograph version of these tuning fork movements; It was known as ESA 9210 and was used in the Omega Speedsonic watch series. Omega watches that used these tuning fork movements were often called 'Omega f300' models, reflecting the frequency of the tuning fork. Chronograph-less f300s must have been produced in tens of thousands and are frequently seen on a popular auction site today. Calibre Omega 1250 Dial:The dial is orginal Referance Numbers:198.020 Size: Width(Without the crown) --— 40 mm Lug to Lug 43 mm. Maximum band size (total arm) approx. 18 cm Original box: No Documentum: No Super fast shipping to the whole world. (3-5 days) DHL UPS FEDEX IMPORTANT NOTE The new customs regulations for the whole of Europe changed on 1 July. You have no doubt that I will do my best to deliver to you with the most suitable customs fee based on my experience. I Never hesitates to take any action that may benefit its customers.