"A Watch for the Captain!" A very rare Omega Seamaster "MARINE" Iconic Watch. Omega's first 100% in house built quartz calibre! The 1310 Megaquartz features a unique mechanism for setting. On the right side are two recessed buttons. Pushing the lower one increments the date by one. Pushing the top one stops the second hand for precise synchronization. Rare Collectors timepiece. Details: Brand: Omega. Model: Seamaster. MARINER. ST 396.0840. All Stainless Steel. Year:1976. Case: Omega Watch Case. Press-In. Case Size circa: 38x41mm. 12mm thick. Caliber: Omega 1310. Quartz Electronic Analogic. Wristband: Omega. Stainless Steel. Adjustable. Length: 18cm including the watch. Waterproof: Yes. 30 meters.(Not Tested, No Guarantee). Lume: Yes. Box/Documents: No. Condition: Vintage. Good working order, however the day can be set, but the date needs a watchmakers assistance as I could not set it, button not responding. (Please see pictures for details as they are the part of the description.) Last date of service is not known and by all vintage watches is recommended. Customs duties in your own country may apply. This item will be packed very well and will be shipped insured.