Seiko 6119-6400, as known Seiko UFO Movement: cal. 6119 A Japan - 17 Jewels Day indicator, English and Arabic, Billingual Manufactured Date: November, 1976 Serial Number: 453160 Instructions: Upper button starts and stops chronometer second and lower button reset it after stopping. Pushing crown sets the date and pushing harder sets both of day and date quickly. Case-Size: 40.8mm (without crown), Lug-to-Lug: 46.5mm Band-Size: Fits up to approx. 20cm (wrist size), Lug: 19mm Service: The watch was recently controlled by an experienced watchmaker before the auction. Condition: Mint. Unnoticeable minor wear on case. Clean dial. The inner bezel working perfectly (very hard to find one with working inner bezel like that). Fully functional. Water-resistant NOT tested. Please look at photos carefully to see the exact condition). Dial, Hands, Bezel and inner ring are aftermarket. We are shipping in 3 business day by FedEx, with tracking code and secure travel box✓ (Alpha Beta Watch was founded about 20 years ago by two watch lover friends. is a company that has sold many products at home and abroad)