Seiko Sportsmatic Deluxe 麗晶 (Reishō) 427990 (1964)

Offered in this auction by Second Vintage A superb example of mid-century Japanese watchmaking, this Seiko Sportsmatic Deluxe stands out for its refined design and remarkable state of preservation. Combining robust engineering with timeless aesthetics, this piece impresses with its crisp lines, beautifully preserved silver dial, and the reliable automatic 7606A movement. Vintage Seiko watches in such outstanding, original condition are seldom encountered and highly sought after by collectors. Brand: Seiko Model: Sportsmatic Deluxe Reference Number: 427990 Serial Number: 4806744 Movement: Seiko Caliber 7606A automatic Dial: Silver sunburst with applied hour markers, dauphine hands, and day-date window at 3 o’clock Case Size: 37 mm (excluding the crown) Case Material: Stainless steel Production Year: 1964 Condition: Stunning original condition throughout; timegrapher result +37s/day, indicating a healthy movement running within vintage tolerances Dial and Hands The silver sunburst dial is exceptionally well preserved, displaying crisp Seiko and Sportsmatic Deluxe branding with all text perfectly legible. The applied hour markers and dauphine hands are sharp, showing minimal aging. The day-date window at 3 o’clock is clean, with the calendar wheels intact and legible. The dial surface shows no spotting or discoloration, enhancing its strong visual appeal. Case and Crystal The stainless steel case retains its original shape and sharp lugs, with well-defined brushed and polished surfaces. Only minor, gentle wear is visible, consistent with careful use. The crystal is clean and clear, free from distracting scratches or chips, offering an unobstructed view of the beautiful dial. Movement Fitted with Seiko’s proven automatic caliber 7606A, a renowned workhorse known for its reliability. A recent timegrapher reading shows +37 seconds per day, indicating the movement is performing well for its age and offers dependable vintage performance. Strap Fitted with a black leather strap featuring contrasting white stitching, in excellent condition with only very mild signs of wear. The strap provides both comfort and a classic look that complements the watch. Condition This Seiko Sportsmatic Deluxe is in stunning condition, with a flawless dial, well-preserved case geometry, and only minor signs of gentle wear throughout. Mechanically, the watch is strong, running well within vintage tolerances as confirmed by the timegrapher measurement. Dimensions Case diameter: 37 mm (excluding the crown) Remarks Seiko Sportsmatic Deluxe examples in this level of original preservation are rare, making this is an exceptional opportunity for both collectors and enthusiasts. The pristine dial, sharp case, and reliable movement present a true highlight of Seiko’s vintage legacy. History Introduced in the dynamic era of the 1960s, the Sportsmatic Deluxe represented Seiko’s pursuit of accessible luxury and technical innovation. Powered by the trusted 7606A automatic movement, it quickly became favored for its blend of durability, performance, and stylish design. This 1964 example showcases the brand’s commitment to quality and remains a timeless classic for collectors today. / Second Vintage SKU: SEIGD95V80000