Grand Seiko
- Founded
- 1960 · Tokyo
- Collections
- 7
- References
- 50
Grand Seiko began in 1960 as Seiko's attempt to beat the Swiss at their own standard, and it separated into its own brand in 2017. Its distinctive contributions are Zaratsu polishing, which produces distortion-free flat surfaces, and Spring Drive — a regulator that draws power from a mainspring but governs timing electromagnetically, so the seconds hand glides rather than ticks.
Browse Grand Seiko.
7 collections
References are a five-letter-and-digit code (SBGA211). The prefix encodes the movement family: SBGA is Spring Drive, SBGR automatic, SBGW hand-wound, SBGJ high-beat.
Before you ask.
How do Grand Seiko reference numbers work?
References are a letter-and-digit code such as SBGA211. The prefix encodes the movement family: SBGA is Spring Drive, SBGR automatic, SBGW hand-wound, SBGJ high-beat.
What is Grand Seiko Spring Drive?
A regulator that draws power from a mainspring but governs timing electromagnetically, so the seconds hand glides rather than ticks.
Does Watch Safe cover Grand Seiko?
Yes. Grand Seiko is catalogued in the Watch Safe reference library, and any Grand Seiko serial number can be looked up in the public registry to check for an existing record or theft flag. Authentication is performed by independent expert authenticators; Watch Safe records the result and publishes the registry entry.
Checking a specific Grand Seiko? Look up its serial number in the registry.