Citizen Cosmotron, a 1970s vintage hybrid watch combining mechanical and quartz technology. The movement was overhauled (disassembled, cleaned, and lubricated) by us in February of this year. The daily rate is approximately +5 seconds. It runs on an LR44 battery. All functions are working. The day-date function switches the date when the crown is pushed in the normal position, and the day of the week when the crown is pushed while the watch is flipped over. The watch has been lightly polished, but there are scratches on the crystal, exterior, and dial, so it is priced a bit lower. Please refer to the images. The dial has a deep green gradation. It comes with the original strap and crown. The wrist size is approximately 18.5-19.0 cm. The case size is approximately 42mm in length and 38.5mm in width. Although it looks old, it is a fully functional watch. As this is a vintage watch, please avoid water exposure.