Designed with a stainless steel case and bracelet, this 41.0mm Grand Seiko Caliber 9R66, features the signature Grand Seiko clear ridges on the facets of the case and the diamond-cut hands and markers with red 24-hour hand on a black dial. Spring Drive, a unique Seiko movement that requires neither a battery nor an electric motor, makes it a completely self-contained system. Its power is derived from a mainspring, just like a mechanical watch, and its accuracy is controlled by the precise signal of a quartz oscillator. These watches are all accurate to ±10 seconds per month, a level that is higher than any other existing spring-wound watch in the world. Spring Drive movement allows for self and automatic winding capabilities and features 30 jewels, with accuracy +/- 1 second per day with over 72 hours power reserve. 100M Water Resistant. Men’s Grand Seiko Spring Drive GMT 41.0mm stainless steel case and bracelet with black dial.
Date, Power Reserve, See Description, Time Zone
Automatic, See Description
- Water Resistance