Here is a fabulous, all original Grand Seiko GS56 Hi-Beat from 1971. The silver sunburst dial is in fine condition, with steel Seiko and GS logos and steel strip hour markers, double at 12 o’clock. There is a mark at the 6 o’clock hour marker and a few marks at the edge of the dial at around 11 o’clock. Under magnification, some corrosion can be seen on some of the hour markers, most notably at the top half of the dial. The faceted dauphine hands are in very fine condition. When the crown is pulled out to set time, the hack stops the seconds hand for more accurate time setting. The steel framed window at 3 o’clock shows the date, which can be quick-set with the crown pulled out to the middle position. The quick-set function should only be used with the hour hand at the bottom half of the dial.

The stainless steel bezel is in very fine condition with only light overall wear. The angular cushion shaped stainless steel case of the 8000 series has integrated lugs and the original GS crown and is in very fine condition. The polished case back is in overall very fine condition with a slightly damaged gold GS medallion. The case has been refinished.

The watch comes on an after market leather strap of good quality with the original Seiko buckle in fine condition.

Inside the watch, Seiko’s high grade 5645A movement beats strongly and accurately to within about +-12 seconds per day. The watch was fully serviced in February 2026 and comes with a 12 month warranty on its proper mechanical functioning.

This is a wonderful example of why Grand Seiko’s are some of the most iconic and collectible vintage watches. The strict and timeless design and the outstanding engineering quality come together to make an absolutely stunning piece on your wrist.

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 we are based in Switzerland and 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  5645-8000
Code    VWS-3215
Movement    Automatic Winding
Case material    Steel
Bracelet material  Leather
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 5645A
Power reserve    40 h
Number of jewels    25
Frequency  28800 A/h

Case

Case material    Steel
Case diameter    36 mm
Lug to lug 40 mm
Water resistance    Not water resistant
Bezel material   Steel
Crystal    Mineral Glass
Dial    Silver
Dial numerals    No numerals

Bracelet/Strap

Bracelet material  Leather
Bracelet color    Black
Lug width    18 mm 
Clasp    Buckle
Clasp material    Steel

Functions

Date

Others

Central seconds, Only Original Parts, Quick-set