Grand Seiko GS56 Hi-Beat

Grand Seiko GS56 Hi-Beat

SKU: VWS-1691

Here is a gorgeous, all original Grand Seiko GS56 Hi-Beat from 1971. The silver sunburst dial has taken on a slight and even patina and is in very fine condition. It has steel Seiko and GS logos and strip hour markers, double marker at 12 o’clock. A small discoloration spot around the 11 o’clock hour marker is the main dial flaw. The faceted dauphine hands are in very fine condition, with the characteristic seconds hand without a central hole. The steel framed window at 3 o’clock displays the quick-set date and weekday in Kanji and English. The quick-set should only be done when the hands are at the bottom half of the dial.


The stainless steel bezel is in excellent condition, with only very light overall wear. The large and angular stainless steel case with the original GS crown and embedded lugs is in excellent condition, with sharp angles between the brushed face and the polished sides. It shows only very light overall wear. The stainless steel case back has a well preserved gold GS medallion and only minor wear.


The original Seiko stainless steel bracelet is in very fine condition with little stretching, but the GS logo has come off, which is not uncommon with these bracelets. It is large enough for big wrists.


Inside the watch, Seiko’s high grade 5646A movement beats strongly and accurately to within about +-10 seconds per day. The watch was fully serviced in April 2022 and comes with a 12 month warranty on its proper mechanical functioning.


The wonderful dial and excellent condition of this GS56 makes it quite rare and something very special to wear on your wrist. Grand Seikos are some of the most renowned watches among enthusiasts and watch knowers and for good reason, with their outstanding technical and design qualities. 



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
    Reference number  5645-8000
    Code    VWS-1691
    Movement    Automatic
    Case material    Steel
    Bracelet material    Steel
    Year    1971
    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    Automatic
    Movement/Caliber   Seiko 5646A
    Power reserve    40 h
    Number of jewels    25
    Frequency  28800 A/h

  • Case

    Case material    Steel
    Case diameter    36 x 40 mm
    Water resistance    Not water resistant
    Bezel material   Steel
    Crystal    Mineral Glass
    Dial    Blue
    Dial numerals    No numerals

  • Bracelet/Strap

    Bracelet material    Steel
    Bracelet color    Steel
    Bracelet length  185 mm
    Lug width    18 mm 
    Clasp    Double-fold clasp
    Clasp material    Steel

  • Functions

    Date, Weekday

  • Others

    Central seconds, Quick Set, Only Original Parts