【Product Description】 The Seiko Ref. 6106-8010 is a vintage automatic wristwatch from the late 1960s. Produced as part of the Seiko 5 DX range, it features a stainless-steel case, an easy-to-read dial with applied hour markers, and a day-date display at 3 o’clock. Its classic proportions and distinctly period-correct design make it a versatile vintage Seiko for everyday wear or collection. 【Historical and Collector Significance】 This model is powered by Seiko’s Cal. 6106 automatic movement. In the DX specification, the movement is fitted with 25 jewels and operates at 21,600 vibrations per hour. It also features hacking seconds and a quickset date operated by pressing the crown. The 6106-8010 is associated with the early Seiko 5 DX series, which offered a more refined execution of Seiko’s dependable automatic day-date watches. Collectors value original examples for their 1960s styling, practical movement, and significance within Seiko’s early automatic-watch production. 【Brand】 Seiko 【Model】 Seiko 5 【Reference Number】 6106-8010 【Movement】 Automatic 【Day Display】 English 【Case Dimensions】 Approx. 37 mm, excluding crown 【Bracelet Material】 Leather 【Wrist Size Adjustment】 Adjustable from approximately 16 cm to 18 cm by adding or removing links and changing the micro-adjustment holes on the buckle. Currently set at 17.5 cm in the center position. 【Condition】 【Case】 There are some minor scratches and scuff marks, but no major damage or noticeable dirt. Please see photos. 【Bezel】 There are some minor scratches and scuff marks, but no major damage or noticeable dirt. Please see photos. 【Dial】 There is slight dirt. Please see photos. 【Crystal】 There are minor scratches. Please see photos. 【Bracelet】 Has been replaced with a new bracelet. 【Crown / Date and Day Setting】 To set the date, pull the crown out one click from its normal position. There is no quick-set function for setting the day of the week. Advance the time past midnight to adjust the day of the week. To set the day of the week, advance the hands past midnight until the date changes, then return them to around 10 PM. Repeat this procedure between 10 PM and 2 AM until the correct day of the week is displayed. 【Movement Condition】 The automatic winding mechanism is functioning correctly. 【Accessories Included】 Watch only. No box or papers included. 【Other Notes】 Made in Japan 【Shipping】 Ships via ePacket / EMS or DHL international registered mail, with tracking and insurance. Estimated delivery time to Europe is approximately 7–14 business days after shipment. 【Notice】 This bracelet is not an original part but an aftermarket replacement and is not the original one that came with the watch.