Legendary SEIKO Helmet (6139-7100) in perfect condition. It has white hour & minute hands and yellow chronometer second hands on the cool black dial. This auction a perfect opportunity to have a vintage SEIKO brand legendary timepiece in perfect condition from the 1970s for SEIKO lovers and collectors. Movement: Cal. 6139B Japan - 17 Jewels 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. Material: All Steel Case-Size: 40.3mm (without crown), Lug-to-Lug: 48.6mm Band-Size: Bracelet band fits up to 21cm (wrist size), Lug: 20mm Service: The watch was recently controlled by an experienced watchmaker before the auction. Condition: Perfect. Clean case, only unnoticeable wear. Clean dial. Fully functional and working. Please look at pictures carefully to see exact condition. Accessories: The watch comes with a stainless-steel bracelet band as seen in the photos. No box and paper. It will be sent as very-well packaged via Express Courier (DHL, UPS or TNT) with the tracking code. *Delivery Times: Europe: 2-5 BD, America: 3-8 BD, Other Countries: 3-10 BD *(BD: Business Days. Delivery times are estimated and may differ (esp. in holiday seasons) because of conditions that out of our control. Customs duties are buyer's responsibility.)