Seiko - Sportsmatic Calendar 820 - No reserve price - 7625-8961 - Men - 1965

Presented for auction by Second Vintage The Seiko Sportsmatic line represents a pivotal era in Japanese horology, bringing reliable automatic movements and robust everyday wearability to the global market. This particular Sportsmatic Calendar 820 is a superb example of 1960s design, featuring a classic case profile, a beautifully aged sunburst dial, and the celebrated dolphin caseback motif. It stands as a testament to Seiko's commitment to creating durable, handsome timepieces that gracefully withstand the test of time, offering collectors a charming and highly wearable slice of mid-century watchmaking history. Brand: Seiko Model: Sportsmatic Calendar 820 Reference Number: 7625-8961 Serial Number: 5608705 Movement: Automatic, Caliber 7625, 17 Jewels Dial: Silver sunburst dial with applied indices, showing attractive age-consistent patina and spotting around the outer perimeter Case Size: 36 mm (excluding the crown) Case Material: Stainless Steel Production Year: 1965 Condition: Good vintage condition with honest signs of wear and an authentically aged dial Dial and Hands The dial presents a classic silver sunburst finish that has warmed over the decades, developing a distinct and attractive vintage character. It features faceted, applied rectangular hour markers that catch the light beautifully. The dauphine hands remain sharp and legible, showing light, age-consistent oxidation. A noticeable, even patina with some concentrated spotting has developed around the outer perimeter of the dial near the minute track, adding a genuine sense of history without obscuring the time display. The printed typography, including the iconic Sportsmatic logo and "Water 30 Proof" text, remains entirely crisp and intact. A cleanly framed date window is positioned at 3 o'clock. Case and Crystal The 36mm stainless steel case embodies the clean, functional elegance of 1960s Seiko design, featuring well-proportioned lugs and a smooth, polished bezel. The case shows honest, age-consistent wear with superficial scratches and handling marks throughout, yet it maintains its original lines and geometry without signs of heavy over-polishing. The signature recessed crown is neatly positioned at 4 o'clock, a hallmark of the Sportsmatic family designed to emphasize the automatic winding nature of the watch. The screw-down caseback is a highlight, featuring a deeply engraved and remarkably well-preserved dolphin motif, alongside crisp reference and serial numbers. The watch is fitted with a domed acrylic crystal that provides a warm, vintage distortion to the dial edge, showing only minor surface wear. Movement Inside beats the reliable Seikosha automatic caliber 7625, a robust 17-jewel movement equipped with the Diashock anti-shock system. The movement presents cleanly in the provided images, with the rotor proudly stamped with the Sportsmatic 820 designation. Running in vintage operational condition. Maintains the authentic mechanical character of the era. The timegrapher results reflect a current performance of -45 to -47 seconds per day. Strap The watch is paired with a handsome brown leather strap featuring an embossed crocodile pattern and contrasting reddish-brown stitching. The strap is secured with a standard stainless steel pin buckle, providing a comfortable fit and complementing the warm, patinated tones of the dial. Condition This timepiece is preserved in good vintage condition, showcasing honest wear that is entirely consistent with its age. The stainless steel case retains its structural integrity and factory profile, displaying normal surface scratches. The dial exhibits visible, age-related patina and spotting around the outer edges, which is visually coherent and appealing to vintage enthusiasts who appreciate untouched aesthetics. The caseback engraving remains exceptionally sharp, indicating careful wear over its lifetime. Dimensions The case measures 36 mm in diameter, excluding the recessed crown, offering a classic and versatile presence on the wrist that suits a wide variety of sizes. Remarks The Seiko Sportsmatic Calendar 820 is a fantastic representation of mid-century Japanese watchmaking, perfectly balancing everyday practicality with timeless elegance. The presence of the crisp dolphin caseback is a delightful detail for collectors, marking an era when water resistance was a highly celebrated and proudly advertised feature. History Introduced in the early 1960s, the Seiko Sportsmatic line was instrumental in popularizing automatic watches in Japan and around the world. Designed to be a durable, self-winding timepiece for the active individual, it laid the groundwork for what would eventually evolve into the legendary Seiko 5 series. The recessed crown was a deliberate design choice by Seiko, visually communicating to the wearer that manual winding was no longer necessary, cementing the Sportsmatic as a modern, carefree watch for the emerging era. / Second Vintage SKU: SEI-SSC-0001