About Grand Seiko SBGC013
Grand Seiko 55th Anniversary Spring Drive Chronograph Limited Edition
Since its birth in 1960, every Grand Seiko watch has shared the same commitment to the pure essentials of watchmaking: precision, durability, legibility and beauty. This 55th anniversary Limited Edition features enhancements in each of these essential characteristics of Grand Seiko.
Precision: A specially tuned version of Spring Drive caliber 9R96. This Limited Edition houses the unique Spring Drive movement, specially tuned for enhanced accuracy. The crystal oscillators are selected individually with time and care, realizing an accuracy of +/- 0.5 seconds a day (+/- 10 seconds per month). A lion emblem in 18K yellow gold graces the oscillating weight to symbolize the enhanced accuracy.
Durability: A ceramic bezel, seven times harder than steel. This is the first ever Grand Seiko watch to use a ceramic bezel. The deep black ceramic on the bezel gives the watch a crisp and refined appearance. Ceramic is seven times harder* and 25% lighter than stainless steel, and scratch resistant. Its surface is specially polished to the highest possible level to create a long-lasting and super-flat mirror finish. *on the Vickers scale
Legibility and beauty: Deep blue, the signature color of Grand Seiko. Grand Seiko’s signature color sets the tone for this Limited Edition. The chronograph hands are in gold tone, creating a strong and elegant contrast with the blue dial and giving high legibility to the stopwatch function.
Both the movement and the complete watch are assembled in the Shinshu Watch Studio, in the mountainous area in the center of Japan. The watch is offered in a limited edition of just 400.
Grand Seiko SBGC013 Features :
- 50 jewels
- Case back with lion emblem
- Date display
- Power reserve 72 hours
- Screw see-through case back
- Screw-down crown and buttons
- Chronograph up to 12 hours
- GMT hand
- Three-fold clasp with push button release
Grand Seiko SBGC013 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