→Extremely rare and original condition, excellent blue dial with Citizen Electronic Cosmotron Transistor. → Year of production: late 1969, early 1970s →'the world's first true electronic wristwatch adopting a moving type balance motor, driven by the transistor in the device' was held. Due to the rise of quartz technology, both Citizen and Seiko stopped producing watches with electronic movements. →All original: Electronically controlled balance engine. Hack feature (a watch with hack feature is a watch that supports the hand within seconds when the crown is pulled). In full working order, new battery →Reset button on '8' works fine →The watch works well and keeps good time →Condition: Excellent for a watch from those years, →Wrist size 18 mm. →Stainless steel case, case size 36 mm → Original Citizen steel bracelet →No box and paper. The watch will be shipped worldwide via Express Courier with a tracking code. For consumption time in Europe only a few days* and approx. 5-7 days for other countries*. Please pay attention to customs tax. Customs duties are the buyer's responsibility and are out of sellers' control. *Estimated business days