An exceptional find for collectors of vintage Japanese horology. This Seiko Sealion M550 DX (Ref. 6106-8480) dates precisely to January 1970. This model represents the peak of Seiko’s "DX" (Deluxe) line from the era, offering a robust automatic movement paired with high-end finishing. The Aesthetic: The standout feature of this particular piece is the stunning sunburst dial which has aged to a warm, even "golden" or champagne patina. This natural aging process gives the watch a unique vintage character that cannot be replicated. The large, faceted hour markers catch the light beautifully, typical of Seiko's 1970s design language. Technical Excellence: • Movement: Powered by the reliable Seiko 6106 automatic movement, a workhorse caliber known for its durability. • Functionality: The Day/Date complication is fully operational, with the quickset function working correctly. • Case Back: Features the highly sought-after Sealion M550 embossed motif, which remains clearly visible despite its age. Condition Report • Dial: Beautifully aged with an even patina; all text and markers are crisp. • Case: Retains its original sharp "Cushion" lines with honest signs of wear (hairline scratches) consistent with a 50+ year old timepiece. • Crystal: Original acrylic crystal showing minor surface marks that could be polished if desired. • Performance: Running accurately and holding a good power reserve. Shipping & Delivery The watch will be secured in a protective watch box and shipped via registered international mail with tracking and insurance.