Just posted a complete set of operating instructions for the SEIKO G757 from Octopussy on the James Bond Watches website. English only, 20 pages.
This is what we've labeled the "Pseudo-Analogue SEIKO" in our definitive list of James Bond watches from Eon Productions films. Per the prop department, it supposedly featured a built-in tracker from Q Branch. Most folks remember it as the one that kept getting close-ups as James Bond raced to the Octopussy Circus in hopes of getting there in time to de-activate the nuclear bomb.
Formally, it's a "SEIKO Quartz Digital Type Calibre G757 Graphic Alarm Chronograph Sports 100" wristwatch. Specific to what Roger Moore wore in the film, that was a calibre G757-5020, model WLK005.
Hope you all find this useful.