Back to 9S Mechanical

GRAND SEIKO SLGH002

Contact us

Grand Seiko SLGH002 Specifications

Exterior
Case Material18k yellow gold
Case BackSee-through with sapphire crystal with lion emblem
Glass MaterialHigh definition box shaped sapphire crystal
Glass CoatingAnti-reflective coating on inner surface
Band MaterialBrown crocodile leather strap
Bezel MaterialFixed polished stainless steel
Dial ColorSilver with sunray-brushed pattern
Dial HandsZaratsu polished stainless steel gold tone hour, minutes and seconds hand
Dial MarkersIndexes with Zaratsu polished gold tone stainless steel markers
CrownGold tone screw down at 3 o’clock position
Case sizeDiameter 40 mm × Thickness 11.7 mm
Clasp type18k yellow three fold clasp with push button release

 

Movement
Caliber no9SA5   Instruction
Movement TypeAutomatic with manual winding capacity
Power reserveApproximately 80 hours
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)
Vibrations36,000 vibrations per hour (10 beats per second)

 

Functions / Specifications
Water resistance10 bar
Magnetic resistanceEquipped (4,800 A/m)
FunctionsHour, minute, second hand, date window at 3 o’clock with gold frame
Features
  • 47 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 SLGH002J

Description

About Grand Seiko SLGH002

Grand Seiko Heritage Collection

60th Anniversary Limited Edition Mechanical Hi-beat 36000 80 Hours

Today, the pages turn again with the launch of a new high beat mechanical caliber, 9SA5, which, in its design and functionality represents an advance just as important as the first 9S. 9SA5 is more than just a new caliber. It is an entirely new movement and the foundation upon which a whole new generation of Grand Seiko mechanical watches will be created. Deploying all the skills and experience we have gained over the past 60 years, beyond doubt, the finest mechanical caliber that we have ever created.
The precision, power and slimness of Caliber 9SA5 are the result of the radical re-design of three key structures and some components within them for which several patents are either already granted or pending.
The escapement is entirely new and was developed in-house. It enables the escapement wheel to transmit power directly to the balance, leading to an efficiency increase. It is unique in that, in one direction, power is transmitted directly to the balance while in the other it is via the pallet fork, as in a traditional escapement. Both pallet fork and escapement wheel are made using MEMS technology.
9SA5 uses a new and special free-sprung balance developed for this caliber. It retains its precision for longer and is more resistant to shock and friction. The secret lies in the precision manufacture of the components as well as the extraordinary adjustment skills of the watchmakers at the Grand Seiko Studio Shizukuishi. The new caliber is 15% slimmer than the current Grand Seiko high beat caliber, thanks to the innovative horizontal layout of the barrel and gear trains.
The movement is as beautifully finished as it is efficient. The bridge has a gently curving outline that is inspired by the shapes of Mt. Iwate and a bend in the Shizukuishi River that runs near the studio where the watch is made. Just as Caliber 9SA5 makes a significant and defining statement about the next stage of Grand Seiko’s technical development, the design also has a distinctive look that marks a new beginning.
The watch is, of course, true to the Grand Seiko Style that was defined back in 1967 with the celebrated 44GS but it is subtly different in ways that are much more than cosmetic.
This new design has all the hallmarks of Grand Seiko but also offers enhanced comfort and legibility. The slimness of the caliber does much to ensure that the watch can sit easily but it is combined with slightly wider lugs so that the watch also stays more solidly on the wrist.

Limited Edition of 100 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 SLGH002 Concept : 

     

 

MAIN CONCEPT

In 1998, the creation of the 9S mechanical caliber opened a new chapter in the Grand Seiko story.
Today, the pages turn again with the launch of a new high beat mechanical caliber, 9SA5, which, in its design and functionality represents an advance just as important as the first 9S.
9SA5 is more than just a new caliber. It is an entirely new movement and the foundation upon which a whole new generation of Grand Seiko mechanical watches will be created.
Deploying all the skills and experience we have gained over the past 60 years, beyond doubt, the finest mechanical caliber that we have ever created.
9SA5 is, A watch offered in a limited edition of 100 will be the first to be powered by this new caliber.
It will be available at the Grand Seiko Boutiques in August 2020.

 

MOVEMENT

36,000 vph, 80 hours of power reserve and a slim profile.
The challenge for any watchmaker who creates a high beat movement is to strike the perfect balance between precision, power and size without compromising on any of these parameters. In developing the 9SA5 caliber, the Grand Seiko development team set out to deliver the same level of stable accuracy as that of their existing 36,000 vph movement but to deliver a longer power reserve and so makes the watch even more practical in everyday life.
They succeeded in characteristically uncompromising style.
Caliber 9SA5 has a precision rate of +5 to –3 seconds a day and a power reserve of 80 hours.

 

The three technical advances that make the difference

1. Dual Impulse Escapement

The escapement is entirely new and was developed in-house. It enables the escapement wheel to transmit power directly to the balance, leading to an efficiency increase. It is unique in that, in one direction, power is transmitted directly to the balance while in the other it is via the pallet fork, as in a traditional escapement. Both pallet fork and escapement wheel are made using MEMS technology.

 

2. Grand Seiko Free-sprung Balance

9SA5 uses a new and special free-sprung balance developed for this caliber. It retains its precision for longer and is more resistant to shock and friction. While the current Caliber 9S uses a flat hairspring, 9SA5 uses an overcoil, whose curve shape was decided after more than 80,000 simulations with the result that its performance is optimized in every possible position. The uniqueness is that it can improve the isochronism. The secret lies in the precision manufacture of the components as well as the extraordinary adjustment skills of the watchmakers at the Grand Seiko Studio Shizukuishi.

 

3. Horizontal Gear Train

The new caliber is 15% slimmer than the current Grand Seiko high beat caliber, thanks to the innovative horizontal layout of the barrel and gear trains. In addition to these three new components, Caliber 9SA5 has other features that contribute to its extraordinary performance. Two barrels, arranged in sequence, enhance the power reserve, the date change is virtually instantaneous and the positioning of the winding stem close to the rotor allows the watch to sit closer to the wrist.

The movement is as beautifully finished as it is efficient. The bridge has a gently curving outline that is inspired by the shapes of Mt. Iwate and a bend in the Shizukuishi River that runs near the studio where the watch is made.

Grand Seiko SLGH002 Design :

Just as Caliber 9SA5 makes a significant and defining statement about the next stage of Grand Seiko’s technical development, the design also has a distinctive look that marks a new beginning.
The watch is, of course, true to the Grand Seiko Style that was defined back in 1967 with the celebrated 44GS but it is subtly different in ways that are much more than cosmetic.

 

This new design has all the hallmarks of Grand Seiko but also offers enhanced comfort and legibility. The slimness of the caliber does much to ensure that the watch can sit easily but it is combined with slightly wider lugs so that the watch also stays more solidly on the wrist.

 


The already legendary legibility of Grand Seiko is further enhanced by the increased volume of the hour hand and by the hour markers that are more prominent, just as they were in the first Grand Seiko of 1960. The Grand Seiko logo, indexes and calendar frame are in 18k yellow gold.

Grand Seiko SLGH002 Features : 

  • 47 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 SLGH002 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

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Local Shipping Calculator

Quantity
Destination
Province
City
District