1. Introduction We are pleased to present this iconic SEIKO 5 ACTUS SS, a highly fashionable automatic series that captured the spirit of the youth market during the late 1960s and 1970s. Based on the 6-digit serial number (105221) engraved on the case back, this genuine timepiece was manufactured in Japan by the Daini Seikosha (Kameido) factory in October 1971, carrying the rich historical character of SEIKO's golden vintage era. This specific example represents the premium upscale tier of the Actus lineup, featuring the "SS" (Second Setting / Hacking) function that stops the seconds hand when adjusting the time. The dial showcases a commanding, heavy "Metallic Gray" sunray surface that blends seamlessly into the sweeping curves of the stainless steel cushion-style case. Retaining its highly sought-after, period-correct original factory bracelet, this authentic 1970s specimen serves as a prime testament to SEIKO's historical design pedigree and structural engineering. 2. Specifications Brand: SEIKO Series: SEIKO 5 ACTUS SS Reference Number: 6106-7520 Date of Manufacture: October 1971 (Serial No. 105221) Movement: Automatic (Caliber 6106C, 23 Jewels, with Hacking / Second-Setting Function) Case Material: Stainless Steel Crystal: Hardlex Water Resistance: Water Resistant (Marked at time of manufacture / Due to age, treat as non-waterproof) Dial: Metallic Gray with applied dimensional indices, English/Japanese day-date display, and the stamped Suwa factory logo Case Back: Stainless Steel Solid Screw-Down Case Back Bracelet: Original SEIKO 5 Actus dedicated stainless steel link bracelet (End links stamped 181) 3. Condition Report Overall: A half-century-old vintage timepiece showing natural, honest signs of active ownership over the decades. It remains in good, stable structural condition, beautifully anchored by its pristine dial face and the rare retention of its original factory-issued steel bracelet. Case & Bezel: The stainless steel cushion case exhibits generalized surface scratches, minor handling scuffs, and small daily dings appropriate for its age. It has escaped over-polishing, allowing the sharp original case geometry and distinctive factory lines to remain beautifully intact. The recessed 4 o'clock crown operates correctly—pressing down adjusts the calendar wheels, pulling to the first position sets the time, and the hacking lever halts the seconds hand properly. Dial & Crystal: The stunning metallic gray sunray dial face, hands, and silver-and-gold multi-faceted indices are in exceptional condition with no notable spotting or surface degradation. The Hardlex crystal displays fine daily hairline scuffs and superficial surface marks from long-term handling, which do not disrupt regular legibility and instead elevate its authentic vintage presence. Bracelet & Clasp: Fitted with its original vintage stainless steel link bracelet featuring the stamped "SEIKO 5 ACTUS" signature folding clasp. It displays typical surface scratches, scuffs, and expected age-related slack (stretch) from handling over the decades, while the clasp closes smoothly and secures tightly. Movement: The legendary 23-jewel Caliber 6106C automatic movement is currently running properly and tracking time with dependable vintage accuracy. 4. International Shipping & Customs International shipping is available to countries worldwide. Please note that international shipping fees and all associated customs duties, taxes, or import fees are the sole responsibility of the buyer.