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GRAND SEIKO SBGR321

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Grand Seiko SBGR321 Specifications

Exterior
Case MaterialStainless steel
Case BackScrew see-through
Glass MaterialDual-curved sapphire crystal
Glass CoatingAnti-reflective coating on inner surface
Band MaterialStainless steel bracelet
Bezel MaterialFixed stainless steel
Dial ColorBlue sunray brushed with applied and faceted hour markers, hour and minute hands
Case sizeDiameter 40 mm × Thickness 13 mm
Lug to lug46.6 mm
Band width22 mm
Clasp typeThree fold clasp with push button release

 

Movement
Caliber no9S65   Instruction
Movement TypeAutomatic with manual winding capacity
Power reserveApproximately 72 hours (3 days)
Accuracy+5 to -3 seconds per day (under a static use) ; This accuracy is the result of measuring the loss/gain of the time for seventeen days before the inside movements of the watch are put in the case. The measurement has been done in the factory where temperatures or position of the movements are controlled. When the watch is actually worn, the accuracy should be from -1 second/day to +10 seconds/day (-1 second/day to +8 seconds/day for Cal.9S85, 9S86).
Frequency28,800 vibrations per hour (8 beats per second)

 

Functions / Specifications
Water resistance10 bar / 100 m
Magnetic resistanceEquipped (4,800 A/m)
Weight159 g
FunctionsHour, minute, red tip on central second hand, date window at 3 o’clock
Features
  • 35 jewels
  • Case back with lion emblem
  • Date display
  • LIMITED EDITION on the case back
  • Screw case back
  • Screw-down crown
  • See-through case back
  • Serial number engraved on the case back
  • Stop seconds hand function

Reference : Grand Seiko SBGR321G

Description

About Grand Seiko SBGR321

Grand Seiko Heritage Collection

Grand Seiko 60th Anniversary Limited Edition

The brilliant blue sky over Mt. Iwate at dawn that greets the watchmakers and technicians of the Grand Seiko Studio Shizukuishi is a sight to behold, especially when it is tinged with the red of the morning sun. It is this combination of colors that has inspired the design of this new automatic timepiece. The blue of the dial is echoed in the vivid blue of the titanium sections of the oscillating weight and a red ring inside the sapphire crystal case back mirrors the glow of the morning sun as it rises and causes light to flood through the broad windows of the studio.
The watch is powered by Caliber 9S65 which delivers a power reserve of 72 hours and a precision rate of +5 to -3 seconds a day. It is assembled, adjusted and inspected by hand at the recently opened Grand Seiko Studio Shizukuishi from where Mt Iwate’s inspiring and graceful form is clearly visible.

* The blue of the oscillating weight is achieved through an anodic oxidation process in which metals are subjected to electrolysis so as to generate an oxide film. This oxide film produces color according to the light refraction index when the thickness of the oxide film is carried.

Limited Edition of 2,500 pieces.

 

About 9S Mechanical

In 1968, Grand Seiko introduced Japan’s first automatic 10-beat watch (61GS) to the world.

In 2009, 10-beat Caliber 9S85 surpassed the original, with high precision parts created using sophisticated modern technology assembled with skills honed over the many decades of Grand Seiko’s watchmaking.

Innovations to the precision controlling mainspring, the hairspring, and the escapement mean that the 9S Mechanical is not simply a revival of the 10-beat movement of the past, but an entirely new incarnation of this high-precision movement.

Grand Seiko SBGR321 Features : 

  • 35 jewels
  • Case back with lion emblem
  • Date display
  • LIMITED EDITION on the case back
  • Screw case back
  • Screw-down crown
  • See-through case back
  • Serial number engraved on the case back
  • Stop seconds hand function

Grand Seiko SBGR321 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.

Design style

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:

  1. Double width index at 12 o’clock
  2. Multi-faceted rectangular markers
  3. Highly polished bezel
  4. Highly polished planes and two-dimensional surface
  5. Half recessed crown
  6. Flat dial
  7. Multi-faceted hour and minute hands
  8. Curved side line
  9. Reverse slanted bezel wall and case side
  10. Dress style with simple but beautiful design
  11. Zaratsu polishing

source : wikipedia

Additional information

Weight2 kg
Dimensions4 × 4 × 2 cm

Seiko Service Center

Center NameAddressTelFax
Seiko Service Center JakartaJalan Melawai IX No. 46, Blok M, Jakarta Selatan, Indonesia+62-21-7208717+62-21-7201249
Seiko Service Center JakartaPlaza Senayan Lt 3 No. 353-A, Jakarta Pusat, Indonesia+62-21-5725689

+62-21-5725690

Seiko Service Center JakartaLt Dasar No. 115-116, Gd. Harco Pasar Baru, Jakarta Pusat, Indonesia+62-21-3452335
Seiko Service Center SurabayaJalan Tunjungan No. 98-100, Surabaya, Indonesia+62-31-5474756

+62-31-5474757

+62-31-5347771
Seiko Service Center SurabayaPlaza Surabaya, Lt 1 No. 56-57, Surabaya, Indonesia+62-31-5316199
Seiko Service Center MedanJalan Cirebon No. 16, Medan, Indonesia+62-61-4149636
Seiko Service Center MedanSun Plaza Level 1, Blok C-32, Medan, Indonesia+62-61-4501505

Water Resistance

Water Resistant Chart

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