Grand Seiko GS56 Hi-Beat Automatic

Grand Seiko GS56 Hi-Beat Automatic

SKU: VWS-1635

Here is a stunning, all original Grand Seiko GS56 Hi-Beat from 1972. The silver sunburst dial has taken on a unique caramel patina and is in very fine condition. It has steel Seiko and GS logos and strip hour markers painted black, double at 12 o’clock. There is some slight wear around the edge of the dial at around 7 o’clock, which isn’t visible to the naked eye. The tapered baton hands are in fine condition, with black central paint and the characteristic seconds hand without a central hole. The hack stops the seconds hand when the crown is pulled out to set the time, so the time can be set more accurately. The steel framed window at 3 o’clock displays the quick-set date. The quick-set should only be used with the hands at the bottom half of the dial.


The stainless steel bezel is in very fine condition with light overall wear. The stainless steel case with the original GS crown and embedded lugs is in very fine condition, with sharp angles between the brushed face and polished sides. It shows some overall wear. The stainless steel case back with the gold GS medallion is in fine condition with some overall wear, including on the edges of the medallion.


The watch comes on an after stainless steel bracelet of good quality. It is large enough for big wrists.


Inside the watch, Seiko’s high grade 5645A movement beats strongly and accurately to within about +-8 seconds per day. The watch was fully serviced in February 2022 and comes with a 12 month warranty on its proper mechanical functioning.


The fabulous dial and untouched condition of this GS56 gives it that very attractive vintage look. This is a watch that feels great on the wrist and it is a perfect daily driver.



Our watches are delivered in a luxury wooden watch box, fully serviced with a 12 month warranty that covers the mechanical functioning of the watch under normal use. We offer 14 days full return rights and are very proud of our reputation for outstanding customer satisfaction.


NB! Note that the buyer is responsible for any import fees their country may impose on a purchase from abroad. Ask us if you have any questions.

  • Basic info

    Brand    Seiko
    Model   Grand Seiko GS56
    Reference number  5645-7010
    Code    VWS-1635
    Movement    Automatic Winding
    Case material    Steel
    Bracelet material    Steel
    Year    1972
    Condition    Very good (Worn with little to no signs of wear)
    Scope of delivery    No original box, no original papers
    Gender    Men's watch/Unisex
    Location Switzerland, Lonay

  • Caliber

    Movement    Manual Winding
    Movement/Caliber   Seiko 5645A
    Power reserve    40 h
    Number of jewels    25
    Frequency  28800 A/h

  • Case

    Case material    Steel
    Case diameter    36.5 x 41 mm
    Water resistance    Not water resistant
    Bezel material   Steel
    Crystal    Mineral Glass
    Dial    Silver
    Dial numerals    No numerals

  • Bracelet/Strap

    Bracelet material    Steel
    Bracelet length 180mm 
    Bracelet color    Steel
    Lug width    18 mm 
    Clasp    Double fold clasp
    Clasp material    Steel

  • Functions


  • Others

    Central seconds, Only Original Parts, Quick-set