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GRAND SEIKO SLGH027

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Grand Seiko SLGH027 Specifications

Exterior
Case MaterialEver brilliant steel
Case BackEver brilliant see-through screw and sapphire crystal
Glass MaterialBox-shaped sapphire crystal
Glass CoatingAnti-reflective coating on inner surface
Band MaterialEver brilliant steel bracelet with clasp parts in rose gold and titanium
Bezel MaterialFixed polished ever brilliant steel
Dial ColorIce light blue radial inspired by unprecedented Mount Iwate texture with engraved Grand Seiko logo below the 12 o’clock position and Automatic Hi-Beat logo at 6 o’clock position
Dial HandsTempered silver tone hour, minute and blue second hand with Zaratsu polished
Dial MarkersSilver tone batons and double batons at 12 o’clock with Zaratsu polished
CrownScrew down at 3 o’clock position
Case sizeDiameter 40 mm × Thickness 11.7 mm
Lug to lug47 mm
Band width22 mm
The perimeter of Band190 mm
Clasp typeThree-fold clasp with push button release

 

Movement
Caliber no9SA5    Instructions
Movement TypeAutomatic with manual winding
Power reserveApproximately 80 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.

Normal usage accuracy+8 to -1 seconds per day
Vibrations36,000 vibrations per hour (10 beats per second)

 

Functions / Specifications
Water resistance10 bar
Magnetic resistanceEquipped (4,800 A/m)
Weight169 g
FunctionsHour, minute, second hand, date window at 3 o’clock
Features
  • 47 jewels
  • LIMITED EDITION on the case back
  • Serial number engraved on the case back
  • Date display
  • See-through case back
  • Screw-down crown

Reference : Grand Seiko SLGH027G

Description

About Grand Seiko SLGH027

Grand Seiko Mechanical Hi-Beat 36000 80 Hours Limited Edition Evolution 9 Collection

A mechanical limited edition in the Evolution 9 Style captures the majesty of the Mount Iwate mountainscape

The beauty of the natural world is palpable at the Grand Seiko Studio Shizukuishi, where all Grand Seiko mechanical watches are made. Located in northern Japan, with Mt. Iwate in the distance, master craftsmen and women bring watches to life in a place deeply in tune with the local surroundings. The watch features a new textured dial inspired by the ridges of Mt. Iwate. The first Mt. Iwate pattern dial appeared in 2006 and has since become deeply associated with Grand Seiko mechanical watchmaking. Mt. Iwate is one of the most active volcanoes in Japan; its history can be felt in the rugged mountainscape and the lava flow at its northern base. The dial of this creation captures the timeless beauty of Mt. Iwate as seen from the sky, with the striking light-blue hue evoking the purity of the air and water that surround this landmark.

The case and bracelet are made of Ever-Brilliant Steel, a stainless-steel alloy that features greater corrosion resistance than is typically seen in the watch industry today. It is powered by the Caliber 9SA5, which offers a power reserve of 80 hours thanks to the use of the highly efficient Dual Impulse Escapement and twin barrels.

Limited Edition of 1,200 pieces.

Grand Seiko SLGH027 Features 

Designed in the Evolution 9 Styles

Grand Seiko SLGH027 Design

The watch has been shaped in the Evolution 9 Style, which represents a step forward for the Grand Seiko ideals of beauty, legibility, and wearing comfort while honoring a design language established in 1967 with the iconic 44GS. Zaratsu polishing to a distortion-free mirror finish alternates with a delicate hairline finish to impart a quiet and harmonious glow. The watch’s powerful hands and prominent, grooved indexes ensure the legibility for which Grand Seiko has become renowned. The case, with its low center of gravity, and a bracelet with the perfect width and thickness combine to ensure that the watch sits comfortably and securely on the wrist.

 

Ever-Brilliant Steel case and bracelet

Grand Seiko SLGH027 Ever Brilliant Steel

The case and bracelet are made of Ever-Brilliant Steel, a stainless-steel alloy that features greater corrosion resistance than is typically seen in the watch industry today. Enhanced by the properties of Ever Brilliant Steel, the hairline-finished parts of the watch shine whiter than they would if formed from usual stainless steel. Their finish perfectly complements the light-blue dial, creating a harmonious design that shimmers beautifully on the wrist.

 

The movement’s finish inspired by the nature of Shizukuishi

Grand Seiko SLGH027 Case Back

The movement’s finish is inspired by the rippling waves of the Shizukuishi River near the studio where the watch is made.

 

Caliber 9SA5

Grand Seiko SLGH027 Caliber 9SA5

Through the use of the highly efficient Dual Impulse Escapement and twin barrels, Caliber 9SA5 achieves approximately 80 hours of operation when the watch is fully wound even with its a high-beat rate of 36,000 vph. The movement also allows the watches it powers to be more lightweight through a unique horizontal ring construction.

Details of Caliber 9SA5

  • 47 jewels
  • LIMITED EDITION on the case back
  • Serial number engraved on the case back
  • Date display
  • See-through case back
  • Screw-down crown

Grand Seiko SLGH027 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 SLGH027 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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