Grand Seiko 4522-8000 September 1969

Grand Seiko 4522-8000 September 1969

Maker: Seiko

Model: Grand Seiko 4522-8000 hibeat

Year: 1969

Case Material: stainless steel

Case Dimensions: 36mm, thickness 9mm

Case serial: 991823

Caliber: 4522A 25jewels 

Service history:  May 2020, currently running at +8.6 seconds/day. 

Lug Width: 18mm

Bracelet/Strap: comes with pictured brown calf leather strap

Box/Papers: none


The 45GS series was the second, and final series to be manufactured by the Daini Seikosha company. The 4520-8000 and 4522-8000 adheres closely to the ‘grammar of design’ case design introduced in the 44GS models with the case being slightly smaller than its older sibling. There were just three calibres used for the 45GS series – the 4520A (no complication), the 4522A (with date complication), and the legendary 4580 VFA.


Overall, this piece is in nice vintage condition. The case has been polished in the past but  retains sharp edges with a beautiful Tanaka grammar of design profile. The original silver/white dial is in clean condition with just some small blemishes around the edge of the dial around the 8 o'clock index (visible on the macro shot). The crystal has been replaced with a Seiko NOS crystal. The GS gold medallion on the case back appears to be an aftermarket replacement medallion (asking price is reflected for this). The handset and crown are all original and in fantastic condition. The movement has just been serviced in May 2020 and is currently running at +8.6 seconds / day.


Ships from Japan