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GRAND SEIKO SBGM247

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Grand Seiko SBGM247 Specifications

Exterior
Case MaterialStainless steel
Glass MaterialDual-curved sapphire crystal
Glass CoatingAnti-reflective coating on inner surface
Band MaterialSilver stainless steel bracelet
Bezel MaterialFixed stainless steel with 24 hours’ arabic numerals marker per 2 hour scale
Dial ColorGreen sunray with engraved Grand Seiko logo below the 12 o’clock position, minute markers and GMT logo at 6 o’clock position
Dial HandsTempered grey silver tone hour, minute, second hand and orange color GMT hand with Zaratsu polished
Dial MarkersSilver tone batons with Zaratsu polished
LumibriteHands and indexes
CrownScrew down at 4 o’clock position
Case sizeDiameter 40.5 mm × Thickness 14.4 mm
Lug-to-lug48.6 mm
The perimeter of Band192 mm
Clasp typeThree-fold clasp with push button release

 

Movement
Caliber no9S66    Instructions
Movement TypeAutomatic with manual winding
Power ReserveApproximately 72 hours (3 days)
Accuracy+5 to -3 seconds per day (mean daily rate)
Vibration28,800 vibrations per hour (8 beats per second)

 

Functions / Specifications
Water resistance20 bar / 200 m
Magnetic resistanceEquipped
Weight180 g
FunctionsHour, minute, second hand, GMT hand, date window at 4 o’clock, dual time display
Features
  • 24-hour hand (dual time display function)
  • 35 jewels
  • Calendar-linked time difference adjustment function
  • Date display
  • Screw case back
  • Screw-down crown
  • Stop second hand function

Reference : Grand Seiko SBGM247G

Description

About Grand Seiko SBGM247

Grand Seiko Sport Collection

GMT and sports. A perfect combination.

The GMT hand allows the time to be read in a second time zone and the hour hand can be adjusted without compromising the watch’s accuracy. This dual-time capability is the perfect function for the world traveler and is here available in a high-performance sports watch. The hour and minute hands are substantial and carry LumiBrite so as to be easily legible, day and night. The GMT hand is in orange and has a distinctive shape that makes it readable at a glance against the green dial. The screw-down crown is recessed at the four o’clock position for extra security and the watch is water resistant to 20 bar. All this, in a case that is just 40.5 mm in diameter. The convenience of GMT meets the high functionality of a true sports timepiece. Quite a combination.

Grand Seiko SBGM247

Grand Seiko SBGM247 Features : 

  • 24-hour hand (dual time display function)
  • 35 jewels
  • Calendar-linked time difference adjustment function
  • Date display
  • Screw case back
  • Screw-down crown
  • Stop second hand function

Grand Seiko SBGM247 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
Dimensions5 × 5 × 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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