Grand Seiko EVOLUTION 9 - SLGW003

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$11,000
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Manual winding, high-beat precision, and 80 hours of power.

The manual-winding Caliber 9SA4, like its automatic counterpart, boasts an impressive 80-hour power reserve, thanks to its efficient Dual Impulse Escapement and twin barrels. Featuring Grand Seiko's Free-sprung Balance and a hairspring with overcoil, it ensures stability, resistance to external influences, and superior performance. Caliber 9SA4 undergoes rigorous testing in six positions at three temperatures over a 17-day period to meet Grand Seiko's high standards. While sharing similarities with Caliber 9SA5, the redesigned Caliber 9SA4 sees nearly 40 percent of its base movement reconstructed to enhance the tactile winding experience. Notably, the movement’s click, essential for preventing the mainspring from unwinding, has been refined for optimal feel and sound. The crown halts when the movement reaches full power, with the click shaped like a wagtail, a bird symbolic of Morioka, the city near the Grand Seiko Studio Shizukuishi where all Grand Seiko mechanical watches are meticulously crafted.

Accompanying the debut of Caliber 9SA4 is a new dress watch design from the Evolution 9 Collection, continuing Grand Seiko’s iconic lineage traced back to the legendary 44GS from 1967. This refined Evolution 9 Style embodies the charm, elegance, grace, and subtlety expected of a hand-wound dress watch, with features such as slimmed-down and elongated grooved indexes and narrowed multifaceted lugs for enhanced aesthetic appeal. The SLGW003 features a case crafted from Brilliant Hard Titanium, and a new dial pattern inspired by the intricate texture of the birch tree's bark.  

Grand Seiko's newest mechanical timepieces boast a sleeker profile with a diameter of 38.6mm and a thickness of just 9.95mm, ensuring both comfort and stability. The lowered center of gravity aligns with the esteemed standards of Grand Seiko’s Evolution 9 creations.

 

CASE

Case Material: Brilliant Hard Titanium

Case Diameter: 38.6mm

Case Thickness: 9.95mm

Case Length: 45mm

Lug Width: 20mm

Crown: Push Down

Strap/Bracelet: Crocodile Leather with Three-fold clasp

Crystal: Box-shaped sapphire crystal with anti-reflective coating

Caseback: Brilliant Hard Titanium with sapphire crystal

 

MOVEMENT

Caliber: 9SA4

Power Source: Manual winding

Jewels: 47

Accuracy: +5 to -3 seconds per day (when static)±1 second per day / ±15 seconds per month (average)

Duration: 80 Hours

 


FUNCTIONS

Features: TTime, power reserve display on back

Water Resistance: 30m

Magnetic Resistance: 4,800 A/m

 

REF: SLGW003

Manual winding, high-beat precision, and 80 hours of power.

The manual-winding Caliber 9SA4, like its automatic counterpart, boasts an impressive 80-hour power reserve, thanks to its efficient Dual Impulse Escapement and twin barrels. Featuring Grand Seiko's Free-sprung Balance and a hairspring with overcoil, it ensures stability, resistance to external influences, and superior performance. Caliber 9SA4 undergoes rigorous testing in six positions at three temperatures over a 17-day period to meet Grand Seiko's high standards. While sharing similarities with Caliber 9SA5, the redesigned Caliber 9SA4 sees nearly 40 percent of its base movement reconstructed to enhance the tactile winding experience. Notably, the movement’s click, essential for preventing the mainspring from unwinding, has been refined for optimal feel and sound. The crown halts when the movement reaches full power, with the click shaped like a wagtail, a bird symbolic of Morioka, the city near the Grand Seiko Studio Shizukuishi where all Grand Seiko mechanical watches are meticulously crafted.

Accompanying the debut of Caliber 9SA4 is a new dress watch design from the Evolution 9 Collection, continuing Grand Seiko’s iconic lineage traced back to the legendary 44GS from 1967. This refined Evolution 9 Style embodies the charm, elegance, grace, and subtlety expected of a hand-wound dress watch, with features such as slimmed-down and elongated grooved indexes and narrowed multifaceted lugs for enhanced aesthetic appeal. The SLGW003 features a case crafted from Brilliant Hard Titanium, and a new dial pattern inspired by the intricate texture of the birch tree's bark.  

Grand Seiko's newest mechanical timepieces boast a sleeker profile with a diameter of 38.6mm and a thickness of just 9.95mm, ensuring both comfort and stability. The lowered center of gravity aligns with the esteemed standards of Grand Seiko’s Evolution 9 creations.

 

CASE

Case Material: Brilliant Hard Titanium

Case Diameter: 38.6mm

Case Thickness: 9.95mm

Case Length: 45mm

Lug Width: 20mm

Crown: Push Down

Strap/Bracelet: Crocodile Leather with Three-fold clasp

Crystal: Box-shaped sapphire crystal with anti-reflective coating

Caseback: Brilliant Hard Titanium with sapphire crystal

 

MOVEMENT

Caliber: 9SA4

Power Source: Manual winding

Jewels: 47

Accuracy: +5 to -3 seconds per day (when static)±1 second per day / ±15 seconds per month (average)

Duration: 80 Hours

 


FUNCTIONS

Features: TTime, power reserve display on back

Water Resistance: 30m

Magnetic Resistance: 4,800 A/m

 

REF: SLGW003

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