Grand Seiko Caliber 9F 25th Anniversary Limited Edition, Reference SBGN007

In 2018, Grand Seiko introduced its first quartz GMT watches from the sports collection. It was comprised of the limited edition SBGN001 and two regular production models (SBGN003 and SBGN005). In the same year, the brand also presented SBGN007, a limited edition quartz GMT watch from its Heritage Collection.

Grand Seiko’s ultimate quartz family, the 9F series was launched in 1993. In 2018, a newly developed GMT movement (9F86) was added. The limited edition SBGN007 commemorates the 25th anniversary of the quartz 9F collection from the Japanese premium watch brand. This timepiece belongs to the Grand Seiko Heritage Collection.

An ideal timepiece for the international traveler, Grand Seiko SBGN007 features a stainless steel case. Measuring 40mm diameter and 12.2mm thickness, it is slightly larger than SBGN001. It is topped with a dual-curved sapphire crystal glass. This model does not feature the external GMT/24H bezel. The watch features a date window at 3’o clock.

Grand Seiko Caliber 9F 25th Anniversary Limited Edition, Reference SBGN007

Limited edition of 1,200 pieces, Grand Seiko SBGN007 boasts a green dial adorned with the quartz symbol pattern. It features an arrow-shaped, vivid yellow color hand for the second time-zone display. As this model does not have an external bezel, the main dial features the 24-H scale by employing indices for even numbers and Arabic numerals for odd numbers.

The Caliber 9F 25th Anniversary Limited Edition watch is equipped with a special Caliber 9F86 movement in which the normal ±10 seconds per year average is enhanced to ±5 seconds per year. A gold 5-pointed star is embellished above the 6 o’clock marker as a symbol of the high precision rate. The movement allows the owner to move the hands without stopping the watch when setting it to local time.

Secured with a screw-lock crown and screw case-back, the watch offers a water resistance of 100 meters. In addition to the Grand Seiko lion emblem, the letters “Caliber 9F 25th Anniversary Since 1993” and a serial number 001/1200-1200/1200 are displayed on the case back.

Technical details

Model: Grand Seiko Caliber 9F 25th Anniversary Limited Edition SBGN007
Collection: Heritage

Case
Stainless steel case
Dual-curved sapphire crystal glass with Anti-reflective coating on inner surface
Case size: Diameter 40mm × Thickness 12.2mm
Water resistance: 10 bar
Screw steel case back with lion emblem
Serial number engraved on the case back

Bracelet
Stainless steel
Three-fold clasp with push button release

Movement
Caliber 9F86 Quartz
Accuracy: ± 5 seconds per year

Functions
24-hour hand (dual time display function)
Calendar-linked time difference adjustment function
Date display