1977 Seiko King Quartz "Pepsi" Corporate Presentation Watch

​A rare and highly collectible example of Seiko’s high-end "Quartz Revolution" era. This King Quartz (Reference 5856-8050) represents the pinnacle of late-70s Japanese horology, featuring a high-precision movement housed in a premium gold-capped case, Pepsi-Cola logo. 

Brand: Seiko
​Line: King Quartz (High-End Sub-brand)
​Reference: 5856-8050
​Serial Number: 7N0105
​Production Date: November 1977
​Case Material: G CAP GOLD (Gold Capped). This is a thick layer of gold bonded to a stainless steel core, significantly more durable and valuable than standard gold plating.
​Movement: Caliber 5856 "Twin Quartz" High-Accuracy Movement. Includes the "Double Honeycomb" logo on the dial, signifying superior precision.
​Complications: Day/Date window at 3 o'clock (featuring English/Kanji day wheel).
​Case Features: External battery hatch for easy maintenance.

Dial: Champagne/Gold sunburst texture with applied baton indices. Features the vintage Pepsi "Globe" logo at the 9 o'clock position. The dial remains in crisp, original condition with no visible "foxing" or moisture damage.
​Strap: 18mm Tapered Lizard Grain Leather in Chestnut/Cognac brown. This reptile-texture style is era-appropriate for the 1970s "Executive" aesthetic and complements the thin, dressy profile of the case.
​Dimensions: Approximately 35-36mm case diameter (excluding crown), a classic vintage dress watch size.

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Sold: $525

Date: 05/11/2026

Website: Twenty Four Hour Mall