GRAND SEIKO SBGA439

$ 4,100

Grand Seiko SBGA439 Specifications

Exterior
Case MaterialStainless steel
Case BackSilver tone screw
Glass MaterialDual-curved sapphire crystal
Glass CoatingAnti-reflective coating on inner surface
Band MaterialSilver tone stainless steel
Bezel MaterialFixed polished stainless steel
Dial ColorMidnight blue
Dial HandsZaratsu polished stainless steel silver tone hour, minutes and second hand
Dial MarkersIndexes with Zaratsu polished silver tone stainless steel markers
CrownSilver tone screw down at 3 o’clock position
Case sizeDiameter 40 mm × Thickness 12.3 mm
Lug to lug46.6 mm
The perimeter of Band203 mm
Clasp typeThree-fold clasp with push button release

 

Movement
Caliber no9R65   Instruction
Movement TypeSpring Drive
Power reserveApproximately 72 hours (3 days)
Accuracy±15 seconds per month (±1 second per day)

 

Functions / Specifications
Water resistance10 bar
Magnetic resistanceEquipped (4,800 A/m)
Weight157 g
FunctionsHour, minute, second hand, power reserve indicator, date window at 3 o’clock
Features
  • 30 jewels
  • Case back with lion emblem
  • Date display
  • Power reserve display
  • Screw case back
  • Screw-down crown
  • Stop second hand function

Reference : Grand Seiko SBGA439G

1 in stock

Description

About Grand Seiko SBGA439

Grand Seiko Heritage Collection

An archetypal Grand Seiko design with a dial in midnight blue

A moonlit sky at night has a tantalizing and ever-changing hue which is captured perfectly in this midnight blue dial. Sometimes, the warmth of the blue is to the fore and, at others, the dial seems almost pitch black. Whatever its aspect, this dial is the perfect backdrop against which the diamond-cut hands and hour markers stand out in sharp relief.
Thanks to Grand Seiko’s unique Spring Drive movement, the seconds hand glides silently and smoothly, with no “tick”, across the dial, perfectly reflecting the natural and continuous flow of time. The power reserve is 72 hours when fully wound and is shown on the discreet indicator next to the eight o’clock index.

 

About 9R Spring Drive

Spring Drive, one of the great innovations in modern watch making history, regulates a spring-driven movement with state-of-the-art electronic technology that functions without batteries or other external power source. Its sole power source is a mainspring, which drives a series of gears. A rotor, connected to the end of these gears, generates a small electrical charge that activates an electronic circuit and quartz oscillator. Its accuracy is unprecedented for a watch wound by a mainspring. The development of the 9R Spring Drive movement was possible only because Grand Seiko is one of the few manufacturers with expertise in both mechanical and electronic watches.

Grand Seiko SBGA439 Features : 

  • 30 jewels
  • Case back with lion emblem
  • Date display
  • Power reserve display
  • Screw case back
  • Screw-down crown
  • Stop second hand function

Grand Seiko SBGA439 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

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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