Vintage Omega Electronic  f300 Seamaster Choronometer Calendar Wrist Watch Dial: in good original un-restored condition, with a cream dial finish and hours marked by applied silver coloured batons. The dial is signed "Omega Electronic f300Hz Seamaster Chronometer Swiss Made". It also bears the Omega emblem. The hands are in excellent condition and the original crystal bears the Omega emblem etched into the centre. It is clean and clear. Case: made of stainless steel, in excellent condition, measuring approximately 36.3 mm across, excluding the signed crown and 41.5mm from lug to lug. Looking inside the screw back cover it is signed "Omega" . The case have tiny traces of use. Movement: ESA 9162 tuning fork calendar movement, named by Omega as their cal. 1250. It is running strongly and keeping time with the quick set calendar function operating correctly. The serial number, dates the watch to 1970. If you hold the watch to your ear you can hear it humming. Batteries for this watch are readily available. Strap: lightly used generic black leather strap which attached to the watch measures approximately 214 mm from buckle tip to last hole. Omega Seamaster f300Hz electronic tuning fork chronometer calendar wristwatch manufactured in 1970, in good original un-restored condition down to the signed crystal. The case, dial and movement are in good condition. The movement runs strongly and keeps time and the quick set date function operates correctly. The watch is signed four times on the case, dial, crown, movement. The movement in this watch is a cal. ESA 9162 (called the cal.1250 by Omega) electronic tuning fork mechanism, not a quartz movement. The ESA 9162 movement is considered by aficionados to be the “Rolls Royce” of tuning fork movements. It was designed by Max Hetzel, who worked for Bulova and was responsible for designing the Accutron 214. The "f300Hz" on the dial refers to the frequency of the tuning fork which provides chronometer precision in timekeeping. It is similar to the Bulova Accutron tuning fork movement but is considered to be of better quality and reliability. The ESA 9162 and its derivatives were used by several high end watchmakers in the 1970's, before quartz watches came to dominate the market, including IWC, Longines, Baume and Mercier, Zenith and Universal Geneve. I have a lot of other watches for sale so please check out my other listings. If you have any questions please feel free to ask. Thanks for looking. Read the Terms and Conditions and review the photos very carefully before bidding. Nothing except those in the photo comes with the product. All items are shown in it. I recommend that you professionally pressure-test all watches for water resistance before swimming or showering. The dial color of the watch is indicated in the description. For reasons caused by light, the dial color of the watch may vary in photographs. Excellent Condition Notes: used, running, Case Condition - Minor Scratches Crystal Condition - Good Dial Condition: Good Bezel Condition - Good Links/Bracelet Condition - Good/ Not Original-Normal Wear Clasp/Buckle Condition - After Market/ Normal Wear Box - No Paperwork - No The watch is in good working condition. Hands & Hour Indexes are in very nice condition. Working well keeping good time. Kindly be informed that the buyer's is responsible to pay for the import taxes . Insured shipped. TNT, Ups, Fedex Or DHL. For Europe about 3 days. Do you Ready to be make collection?