About Grand Seiko SBGN001
Grand Seiko Sport Collection
Celebrating the 25th anniversary of the Grand Seiko 9F quartz caliber
Caliber 9F 25th Anniversary Limited Edition
The first Grand Seiko 9F quartz GMT model. The perfect caliber for the international traveler.
Caliber 9F, which was developed to create the ultimate quartz watch, now features the GMT function for the first time. This new addition to the Grand Seiko Sport Collection allows you to fully enjoy the newly-designed Caliber9F86 in a genuinely sporty design with the sophisticated thinness that is unique to quartz watches.
The watch allows you to move the hands without stopping the watch when setting it to local time. This achieves a convenience in which the excellent accuracy of the quartz watch isn’t lost.
The case features a simple three-dimensional, thin design, which creates a comfortable fit. By featuring a screw-lock crown, the watch maintains excellent airtightness and water resistance as well as durability .
The contrast created by the striking GMT hand and the upper and lower two-toned dial rings helps you intuitively tell whether the time indicated by the GMT hand is day or night.
As a special finish for the limited-edition model, the combination of charcoal gray and vivid yellow—a first for Grand Seiko—maximizes the visibility of the GMT display. The dial pattern imparts a sporty, digital look by featuring a GS9F pattern with our original quartz symbol as motif over the entire dial to create an exclusive design for the 25th anniversary of the launch of the 9F.
The watch is equipped with a special Caliber9F86 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.
Together with the lion emblem, which is the symbol of Grand Seiko, the letters “Caliber 9F 25th Anniversary Since 1993” and a serial number 001/800-800/800 is displayed on the case back.
Limited edition of 800 pieces.
Grand Seiko SBGN001 Features :
- 24-hour hand (dual time display function)
- Calendar-linked time difference adjustment function
- Case back with lion emblem
- Date display
- Screw case back
- Screw-down crown
- Serial number engraved on the case back
- Stop second hand function
Grand Seiko SBGN001 History :
Prior to 1960, to challenge the status of Swiss watches and change the perception of Japanese watches, Daini Seikosha and Suwa began the discussion of a product line that can match the quality of Swiss watches under the suggestion of the parent company. At the time, Suwa Seikosha Co. was in charge of manufacturing men’s watches, so it was decided that Suwa would be producing the first Grand Seiko (GS).
The first Grand Seiko was released in 1960, it was based on Seiko’s previous high-end watch, CROWN. This Grand Seiko has a 25-jewel, manual-winding, 3180 caliber, and only 36,000 units were produced. This was also the first chronometer-grade watch manufactured in Japan, and it was based on Seiko’s own chronometer standard.
The design language of the Grand Seiko was set in 1967, with the creation of Grand Seiko 44GS. The 44GS set the ground for all future Grand Seiko with nine elements. These elements help improve the legibility of the watch under different situations, and create a sharp, crisp visual impression:
- Double width index at 12 o’clock
- Multi-faceted rectangular markers
- Highly polished bezel
- Highly polished planes and two-dimensional surface
- Half recessed crown
- Flat dial
- Multi-faceted hour and minute hands
- Curved side line
- Reverse slanted bezel wall and case side
- Dress style with simple but beautiful design
- Zaratsu polishing
source : wikipedia