cazalea
[Seiko Moderator]
17149
Constant Force Tourbillon SLGT005
In 2022, Grand Seiko presented its first mechanical complication, the Kodo Constant-force Tourbillon, a revolutionary watch that combined a tourbillon and a constant-force mechanism as one unit on a single axis for the first time in horological history. As such, it represented a major milestone in the history of Grand Seiko and was recognized by the international watch community when it was awarded the Chronometry Prize at that year’s Grand Prix d’Horlogerie de Genève.
While the first Kodo expressed evening twilight through the delicate interplay of light and shadow that is central to Grand Seiko aesthetics, the new timepiece uses light and shadow to evoke daybreak. The delicate time when morning light begins to reclaim the sky is emphasized throughout the design, completing a portrayal of light and shadow that began two years ago. The movement components have a silver tone, giving the new Kodo a subtle but bright appearance that accentuates the intricately constructed and layered parts. The beauty of the painstakingly hand-polished components is even more pronounced in the new timepiece. For the first time in a Grand Seiko watch, blue sapphires take the place of some of the rubies, adding an unexpected detail that is in perfect harmony with the design. Carefully examined and selected, the pale blue sapphires recall a beautiful dawn.
A subtle gradation of light is expressed through the use of different materials and various types of finishing. Platinum 950 forms the watch’s inner case, while Brilliant Hard Titanium, an alloy twice as hard as stainless steel, forms the outer case, making the exterior highly resistant to scratches. The combination of the two materials creates a natural gradation and a long-lasting beauty.
Some of the case parts in both metals are Zaratsu polished to a distortion-free mirror finish, while others have a hairline finish. Each process is completed by hand by highly skilled craftsmen and women to ensure that an elegant visual harmony is revealed from every angle.
The watch is offered with a leather strap created from a highly durable material that is specially treated in the same traditional way once used in samurai armor. But this time, a new white color was developed specifically for the new Kodo. The white strap is made through tanning with natural materials and then carefully hand-coated with layers of white urushi lacquer to create a deep sheen and a unique texture. A crocodile strap in charcoal grey also comes with the watch.
MOVEMENT
Caliber number: 9ST1
Movement Type: Manual winding
Power reserve: Approx. 72 hours(3 days)(Constant-force: 50 Hours)
Normal accuracy: +5 to -1 seconds per day
Frequency: 28,800 vibrations per hour (8 beats per second)
Power reserve indicator
CASE
Exterior: Brilliant Hard Titanium and Platinum,
Caseback: Platinum and sapphire crystal
Case back: See-through case back
Glass: Box shaped sapphire crystal
Coating: Anti-reflective coating on inner surface
Case size:
Diameter 43.8mm
Lug-to-lug 50.6mm
Thickness 12.9mm
Band width: 22mm
Band Material: Calfskin
Clasp type: Three-fold clasp with push button release
Functions
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Other details / Features:
LIMITED EDITION on the case back
Serial number engraved on the case back
Platinum buckle (PT950)
More posts:
Grand Seiko new models for 2024
A new manual-wind Hi-Beat movement running ~ 80 hours. A GMT Chronograph whose dial runs ~ between gold / orange / red / black A new beautiful Platinum & Titanium variant of the Constant Force Tourbillion, running ~ $375,000 More details in the files belo...
Spring Drive Chronograph 9R 20th Anniversary Limited Edition: SBGC275
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The 18K rose gold dress watch is equipped with the Grand Seiko Caliber 9SA4, the brand’s first manual-winding 36,000 vph mechanical movement to be created in approximately 50 years. Today, the ritual of winding a watch is one of life’s pleasures. The simp...
Love this new hi-beat movement
very good looking one. Also the Evo9 case on 38mm with less then 10mm of thickness is great, this is going to be the new classic watch of GS I think. My only problem is the white birch dial which is a tad too flashy for me on a classic watch. However I’m ...
I tried the
SLGH005 white birch in metal and the dial was a bit too brilliant for me, so I bought the darkest lake suwa iteration SLGA021. Need to see this new dress watch too but if it’s the same dial then I’d prefer to wait for a new one, other than the dial the wa...
Constant Force Tourbillon SLGT005
In 2022, Grand Seiko presented its first mechanical complication, the Kodo Constant-force Tourbillon, a revolutionary watch that combined a tourbillon and a constant-force mechanism as one unit on a single axis for the first time in horological history. A...
Grand Seiko really drank the birch beer! I'm disappointed not to see a new micro artist studio watch with the 9r02 movement
This one: I'm told the previous one is sold out. ...
They may not have completed production of last year’s 50 pieces
I visited Shiojiri in summer of 2022 and they were still manufacturing the SBGZ007 that had been launched a year earlier. I think it takes them about 2 years to fulfill all 50 pieces with the limited production capacity of the Micro Artist Studio.
The SLGW Hi-beat looks good.
Will have a look see when it is available. The chrono dial bit too busy for GS to feature a rather unique dial.
New movements. Interesting materials. Compliments GS
Along with Chopard the two most sincere horological presences this year. I am excluding independents from this comment
