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SBGD223J
Limited edition of 8 pcs

SBGD223

Masterpiece Collection

May.2025Released

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  • Available at the Grand Seiko Boutiques

Features

Specifications

Exterior
Exterior: Platinum
Case back: See-through & Screw case back
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
Case size: Diameter 44.5mm Lug-to-lug 52.0mm Thickness 14.4mm
Band width: 23mm
Band Material: Crocodile leather
Clasp type: Three-fold clasp with push button release
Movement
Caliber no.: 9R01 Instructions
Movement Type: Spring Drive Manual winding
Power reserve: Approx. 192 hours(8 days)
Accuracy: ±10 seconds per month (±0.5 second per day)
Functions
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Other details / Features:
  • Case with diamond(s)
  • LIMITED EDITION on the case back
  • Serial number engraved on the case back
  • Dial with diamonds and black spinels
  • Crown with diamond
  • Platinum 950 clasp (partly 18k white gold)
  • 26 black spinels (0.88 carat)
  • 649 diamonds (8.04 carat)
  • 56 jewels
  • Power reserve indicator
  • Time difference adjustment function
Watch finder

The three movements at the heart of Grand Seiko

9SMechanical

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.

9RSpring Drive

Spring Drive’s unique movement technology generates power through a mainspring like other mechanical watches but combines this with the Tri-synchro Regulator for extraordinary precision.

9F Quartz

The ultimate quartz movement. Caliber 9F incorporates several unique technologies that rise the performance of quartz to the high standards of Grand Seiko.