- Available at the Grand Seiko Boutiques and Grand Seiko Salons
A new automatic series for women
Slimness and performance in perfect harmony
The new Grand Seiko automatic calibre 9S27 strikes that difficult and delicate balance between high performance and slimness that only a true “manufacture” can achieve. Its performance is outstanding, with a precision rate of +8 to−3 seconds a day and a power reserve of 50 hours.
These high levels of performance are delivered by an 8 beat movement that is just 19.4mm in diameter and 4.49mm in height, which allows the case to fit every wrist and each timepiece to have an elegantly slim profile.
Mechanical for women -18K gold model-
STGK004's case is 18K yellow gold. 42 diamonds are set into each bezel and 12 into each mother-of-pearl dial. One more and larger diamond is set into the crown.
This elegance is exquisitely complemented by the finest crocodile leather strap.
A diamond inspired pattern is sculpted into the mother-of-pearl.
High definition dual-curved sapphire crystal is equipped with anti-reflective coating.
The beauty of the finishing is visible through the sapphire crystal case back.
Available exclusively from the Grand Seiko Boutique.
|Exterior:||18k yellow gold|
|Case back:||See-through & Screw case back|
|Glass Material:||Dual-curved sapphire crystal|
|Glass Coating:||Anti-reflective coating on inner surface|
|Case size:||Diameter 28.7mm Lug-to-lug 35.1mm Thickness 10.9mm|
|Band Material:||Crocodile leather|
|Clasp type:||Three-fold clasp|
|Caliber no.:||9S27 Instructions|
|Movement Type:||Automatic with manual winding|
|Power reserve:||Approx. 50 hours|
|Mean daily rate:||
+8 to -3 seconds per day
|Normal usage accuracy:||+10 to -5 seconds per day|
|Water resistance:||10 bar|
|Magnetic resistance:||4,800 A/m|
|Other details / Features:||
The three movements at the heart of Grand Seiko
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.