Here is a fabulous, all original Grand Seiko GS56 Hi-Beat from 1971. The charcoal linen dial is in very fine condition, with steel Seiko and GS logos and steel strip hour markers, double at 12 o’clock. There is a mark to the left of the 6 o’clock hour marker and a few small marks around the dial, mostly on the left half. Some corrosion can be seen on some of the hour markers under magnification, most notably at 12 o’clock. 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. This should only be done with the hour hand at the bottom half of the dial.

The stainless steel bezel is in fine condition with some wear throughout, perhaps most prominent at around 7 o’clock. The angular cushion shaped stainless steel case of the 8000 series has integrated lugs and the original GS crown and is in fine condition. It shows a few marks both at the brushed face and the polished, sloped sides, perhaps most prominent towards the upper right lug. The polished case back has a slightly worn gold GS medallion and is in fine condition, with a few scratches and marks throughout. The case does not appear to ever have been polished.

The original brick wall pattern stainless steel bracelet with the GS logo on the clasp is in fine visual condition with some marks of wear both on the links and on the clasp. It is big enough for moderately large wrists. Make sure the specific bracelet size listed in the details is not too small for your wrist as finding spare links for old bracelets is very difficult. The bracelet can be shortened by up to about 2cm simply by moving a spring bar in the clasp.

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 May 2024 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-2574
Movement    Automatic Winding
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 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    Grey
Dial numerals    No numerals

Bracelet/Strap

Bracelet material    Steel
Bracelet length 195 mm 
Bracelet color    Steel
Lug width    18 mm 
Clasp    Double fold clasp
Clasp material    Steel

Functions

Date

Others

Central seconds, Only Original Parts, Quick-set