Re-creation of the 45GS captures the heritage and evolution of Grand Seiko’s high-precision watchmaking.

In 1968, Grand Seiko introduced the 45GS. This watch came just one year after the 44GS, the legendary creation that established the brand’s design code, the Grand Seiko Style. Although the two watches were nearly identical in styling, the 45GS featured a dramatic upgrade in terms of stability and performance with the brand’s first manual-winding high-beat movement, the Caliber 4520. Today, re-creation of this milestone is born.

The original's angular case, which featured flat, mirror-polished surfaces and curved case sides, has been re-created using Grand Seiko's latest watchmaking technology. The dial colors and lettering are virtually identical to the originals. At the 12 o'clock position appear the Seiko letters, which have been made to reimagine the vintage character of the original. At the six o'clock position, one will notice the GS and Hi-Beat letters; the number 36000, which signifies the high frequency of the movement; and even the Daini Seikosha factory logo, indicating the birthplace of the original 45GS.

Nov.2024 Release

Exterior

Exterior : 18k yellow gold

Glass Material : Box shaped sapphire crystal

Glass Coating : Anti-reflective coating on inner surface

Case size : Diameter 38.8mm Lug-to-lug 43.7mm Thickness 10.4mm

The perimeter of Band : 19mm

Band Material : Leather

Functions

Water resistance : Splash Resistant

Magnetic resistance : 4,800 A/m

Other details / Features :

18K yellow gold crowns
LIMITED EDITION on the case back
Serial number engraved on the case back
Power reserve indicator
See-through & Screw case back

Movement

Caliber no. : 9SA4 Instructions

Movement Type : Manual winding

Power reserve : Approx. 80 hours

Normal usage accuracy : +8 to -1 seconds per day

Accuracy : +5 to -3 seconds per day
* Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.

SLGW004J - Re-creation of the 45GS Limited Edition Mechanical 18K Gold