Seiko, a 4R35B watch movement. This was taken from a new watch by a relative who repairs watches, and it has been adjusted for accuracy. According to the memo: Position | Rate | Amplitude Dial up | +7 | 280 Dial down | +4 | 284 Crown up | +2 | 250 Crown down | +5 | 252 I've been told that these are good results. It will be shipped in a plastic case via Takkyubin Compact. Thank you.