Grand Seiko Black Ceramic Collection

SBGC221

[ 9R Spring Drive ]

  • FEATURES
  • SPECIFICATIONS

FEATURES

A Spring Drive watch, combining ceramic and high-intensity titanium

This watch features a luxury sports design and a remarkable new hybrid titanium-ceramic bracelet construction.
The flat shape of the case was developed with the aim of making the most of the unique characteristics of zirconia ceramic.
Despite the difficulties of polishing ceramics, the beautifully crafted ceramic edges on the polyhedral shape are polished to a mirror finish and produce the intricate overlapping reflections that are the characteristics of the Grand Seiko design.
The band's combination of these two different materials serves a practical purpose while also accentuating the design. As the zirconia ceramic parts are raised slightly above the level of the titanium, the bracelet is virtually impervious to scratches and will retain its pristine appearance.
The second hand, minute hand, GMT hand and markers on the white dial are all finished with LumiBrite inserts to ensure high legibility.

SPECIFICATIONS

Case
Case : High-intensity titanium and ceramic
Glass : Anti-reflection coating on inner surface
Coating : Three-fold clasp with push button release
Case size : Diameter 46.4mm×Thickness 16.2mm
The perimeter of bracelet : 190.0mm
Band : High-intensity titanium and ceramic
Movement
Movement : Caliber 9R86    Instructions
Driving system : Spring Drive
Power reserve : Approximately 72 hours
Accuracy : ±1 seconds per day (±15 seconds per month)
Functions/Specifications
Water resistance : 10 bar
Magnetic resistance : 4800 A/m (60 gauss)
Weight : 158.0 g
Remarks : Screw down crown
Screw back
See-through back
Dual time function with 24-hour display
Stop watch
Power reserve display function
Quick correction function of time difference adjusting to a calender
Caseback with a lion emblem
Jewel:50
Anti-metal allergy