Thank you for viewing. I am offering a 1961 Seiko Matic Diashock 20 jewels (serial number 15007D). Historical Value This model is from the Seiko Matic series, which appeared during the dawn of Seiko's automatic watches. The Cal.603 movement installed is a high-precision mechanism that became the foundation for later Grand Seiko automatic models. With its 20-jewel "Diashock" shock resistance mechanism, it achieved both practicality and reliability at the time. Vintage Appeal Manufactured in May 1961 (serial number 15007D), this is an early model with a small number remaining. The aged case and dial colors have a unique flavor that is characteristic of vintage watches. Condition There are minor scratches from use (fine scratches on the crystal and case frame). It is in relatively good condition for its age. Collector's Must-See Points The 20-jewel Diashock boasts the highest durability of Seiko's automatic watches at the time. It has historical significance as the prototype for later Grand Seiko and high-precision automatic watches. The manufacturing month can be identified from the serial number, which is irresistible information for vintage fans. A masterpiece that allows you to feel the history of Seiko. Recommended for those who want to enjoy the charm of vintage watches and those who want to add them to their collection. [Accessories] Watch body only (Everything in the photos is included) *Please understand that there are individual differences in how the condition of the product is perceived, and please bid with the understanding that it is a "used item." The products are photographed with a smartphone. The colors and condition may differ from the actual product. ◆Packing and Shipping We will carefully pack and ship with bubble wrap, etc. Depending on the product, it may be partially disassembled for packing.