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GRAND SEIKO SBGJ275

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Grand Seiko SBGJ275 Specifications

Exterior
Case MaterialStainless steel
Case BackSee-through screw back
Glass MaterialDual-curved sapphire crystal
Glass CoatingAnti-reflective coating on inner surface
LumiBriteLumiBrite on hands, indexes and bezel
Band MaterialSilver 3-link stainless steel bracelet
Bezel MaterialBi-directional rotating 24 hour with two-tone blue and white sapphire insert stainless steel with arabic numerals per 2 hours scale
Dial ColorLight blue dial cloud texture with engraved gold tone Grand Seiko logo below the 12 o’clock position and Automatic Hi-Beat GMT logo at 6 o’clock position
Dial HandsTempered luminous silver tone hour, minute, second hand and blue colored arrow shaped GMT hand with Zaratsu polished
Dial MarkersLuminous silver tone batons indexes with Zaratsu polished
CrownScrew down at 3 o’clock position
Case sizeDiameter 44.2 mm × Thickness 14.8 mm
Lug to lug50.6 mm
Band width21 mm
The perimeter of Band201 mm
Clasp typeThree-fold clasp with push button release

 

Movement
Caliber no9S86    Instructions
Movement TypeAutomatic with manual winding
Power reserveApproximately 55 hours
Mean daily rate+5 to -3 seconds per day

*Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.

Vibrations36,000 vibrations per hour (10 beats per second)

 

Functions / Specifications
Water resistance20 bar
Magnetic resistanceEquipped (4,800 A/m)
Weight188 g
FunctionsHour, minute, second hand, GMT hand, date window at 4 o’clock
Features
  • 37 jewels
  • 24-hour hand (dual time display function)
  • Calendar-linked time difference adjustment function
  • LIMITED EDITION on the case back
  • Serial number engraved on the case back
  • Case back with lion emblem
  • Rotating bezel
  • Screw-down crown
  • Date display
  • See-through screw case back

Reference : Grand Seiko SBGJ275G

Description

About Grand Seiko SBGJ275

Grand Seiko Mechanical Hi-Beat 36000 GMT Caliber 9S 25th Anniversary Limited Edition Sport Collection

Inspired by a sea of clouds at daybreak

A new limited-edition watch commemorates the 25th anniversary of the Caliber 9S mechanical watch movement.
The new GMT watch lifts the imagination skyward with a beautiful blue dial that illustrates a sea of clouds at daybreak. In the early morning, humid air forms dense clouds that overlap to create a beautiful tapestry in the sky. The shade of blue is inspired by the sky over Mt. Iwate when it is blanketed by this sea of clouds. A rotating sapphire bezel in blue and white elevates the design while allowing for a total of three time zones to be read at once.
Inside is the Grand Seiko Caliber 9S86. Assembled at the Grand Seiko Studio Shizukuishi by skilled craftsmen and women, the Caliber 9S86 beats 10 times per second, enhancing rate stability.

Limited edition of 2,000 pieces.

Grand Seiko SBGJ275 Features

A dial that expresses the beauty of the sea of clouds and sky over Mt. Iwate

Grand Seiko SBGJ275 Dial

The dial’s organic pattern depicts the layered sea of clouds that envelops Mount Iwate as dawn breaks. The pale blue color overlaid on the pattern gives the dial the appearance of a sea of clouds floating in a beautiful sky.

 

A titanium oscillating weight made light blue through anodic oxidation

Grand Seiko SBGJ275 Case Back

The oscillating weight is a fresh sky-blue color achieved through an anodic oxidation process. Decorated with the Grand Seiko lion emblem, the oscillating weight, like the dial, calls to mind a beautiful blue sky with a sea of clouds. This creation marks the first time a Grand Seiko mechanical watch with water resistance to 20 bar has featured an exhibition case back.

 

Mechanical Hi-Beat 36000 GMT

Grand Seiko SBGJ275 Caliber 9S86

The watch houses the mechanical Hi-Beat 36000 GMT Caliber 9S86, which features automatic winding and strong resistance to interference, ensuring a high level of precision on the wrist.

Details about Caliber 9S86

  • 37 jewels
  • 24-hour hand (dual time display function)
  • Calendar-linked time difference adjustment function
  • LIMITED EDITION on the case back
  • Serial number engraved on the case back
  • Case back with lion emblem
  • Rotating bezel
  • Screw-down crown
  • Date display
  • See-through screw case back

Grand Seiko SBGJ275 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

Grand Seiko SBGJ275 Features

Additional information

Weight2 kg
Dimensions5 × 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

Size Guide

Wrist circumferenceSuitable case sizes
5.5 in / 14 cm34 mm36 mm38 mm
6.0 in / 15.2 cm36 mm38 mm40 mm
6.5 in / 16.5 cm38 mm40 mm42 mm
7.0 in / 17.8 cm40 mm42 mm44 mm
7.5 in / 19 cm42 mm44 mm46 mm
8.0 in / 20.3 cm44 mm46 mm48 mm

Watch Size Guide

Water Resistance

Water Resistant Chart

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