[Introduction] Offered here is a Seiko Automatic (AT) 5606-7310 featuring a striking blue gradient dial with day-date display and classic applied markers. The dial shows the LM emblem and “23 JEWELS,” giving the watch a distinctly vintage Seiko character. It is fitted with a stainless steel bracelet. [Historical & Collector Value] Seiko’s 5606 series is well-regarded among vintage enthusiasts for combining practical daily functions (automatic winding and day-date) with clean, well-balanced dial design. The blue dial and LM-marked layout make this an appealing piece for collectors seeking a classic Japanese vintage automatic. Specifications ◇ Brand: SEIKO ◇ Type: Automatic (mechanical) ◇ Reference: 5606-7310 ◇ Dial: Blue gradient, “SEIKO AUTOMATIC”, LM mark, “23 JEWELS” ◇ Display: Analog ◇ Functions: Time, day-date ◇ Day wheel: Japanese/English style not fully confirmed ◇ Case material: Stainless steel (caseback marked “STAINLESS STEEL”) ◇ Water resistance: “WATER RESISTANT” ◇ Bracelet: Stainless steel bracelet ◇ Serial/Number: 300796 ◇ Case size: 36 mm (excluding crown) ◇ Wrist size: Approx. 17 cm ・Condition The watch shows surface scratches and handling marks on the case, caseback, and bracelet consistent with use. Some discoloration/corrosion is visible on parts of the bracelet links in the photos. The dial and hands appear presentable overall; please review all images carefully for exact condition details. ・Service History Operational checks have been performed (time-setting and basic running confirmation where possible). Service history is unknown. Future maintenance may be required depending on usage and the buyer’s accuracy standards. ・Shipping & Customs The watch ships from Japan and will be carefully packed. International shipping is available. Customs duties and taxes, if any, are the buyer’s responsibility.