Grand Seiko STGK003
The new Grand Seiko automatic caliber 9S27 strikes that difficult and delicate balance between high performance and slimness that only a true “manufacture” can achieve. Its performance is outstanding, with a precision rate of +8 to -3 seconds a day and a power reserve of 50 hours. Each movement is made, assembled…
| Reference | STGK003 |
|---|---|
| Collection | Heritage |
| Case diameter | 28.7 mm |
| Case material | 18k white gold |
| Movement | Mechanical |
| Power reserve | 50 h |
| Water resistance | 100 m |
| Crystal | Sapphire |
| Original retail (USD) | $31,200 |
This is a reference-catalog entry for the Grand Seiko STGK003. WatchFlow's Watch Library lets a dealer attach a reference like this to a piece of stock in one click, so the brand, reference and specs are filled in automatically instead of retyped — then that record drives listings, invoices and reports. See how it fits the wider watch inventory management workflow.
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