Grisaia: Phantom Trigger (2019)

Bibury Animation Studios' adaptation of Frontwing's Grisaia: Phantom Trigger visual novels, following the armed "sapper school" students of a rebuilt Mihama Academy: handler Haruto Aoi's Class A of trained young operators. The animated series began with two 2019 theatrical episodes and returned six years later as a thirteen-episode television continuation broadcast between January and March 2025; the visual novel volumes it adapts began publishing in 2017. (Frontwing, IMDb, IMDb: 2025 series)

The franchise's costume design gives each operator a specific, consistently drawn wristwatch, and the identifications below rest on one unusually detailed fan analysis of those designs across the visual novels and the anime; the analysis names its cues, and its own uncertainty about individual models is preserved in each record. (r/grisaia)

Watches

Casio G-Shock GD-350-8: Murasaki's watch is drawn as the grey GD-350-8, the vibration-alert G-Shock whose silent flat-motor alarm suits an operator who cannot afford an audible beep. In Frontwing's visual novels she wears the black-and-red GD-350-1B; the anime redraws the same model in its grey colorway. The identification comes from a detailed fan analysis of the series' watch designs. (r/grisaia)
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Casio G-Shock GW-M5610U-1ER: Chris, Class A's driver and gunsmith, wears the solar, radio-synced square G-Shock GW-M5610U-1ER, which a detailed fan analysis of the series' watch designs places in both the visual novels and the anime; the multi-band square is the pragmatic pick of the group's most equipment-minded member. The wrist insert here is from episode 1 of the 2025 television continuation, and that is the generation this reference can belong to: Casio introduced the GW-M5610U-1ER in 2021, two years after the 2019 theatrical episodes, and the analysis was written during the 2025 broadcast without separating the two. A square drawn in the 2019 episodes would instead be the visually near-identical GW-M5610 that the 2021 "U" revision replaced. (r/grisaia)
© Frontwing / Project GPT

Casio G-Shock GW-M5610U-1ER: In the anime Tohka wears the same GW-M5610U-1ER square as Chris, on the same evidence and with the same limit: the reference dates to 2021 and so postdates the 2019 theatrical episodes, while the analysis identifying it was written during the 2025 television broadcast and never says which generation of the animation it describes. In the visual novels she instead wears an unidentified Swiss-style dive watch with a countdown bezel, which the analysis leaves open for lack of distinguishing marks. (r/grisaia)
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Casio G-Shock: Rena's watch is an analog-digital G-Shock drawn with a GMT-style bezel, described by the identifying analysis as a Gravitymaster-type variant it could not match to a production reference, and recalled by a second fan as a blue-bezel Gulfmaster. With the two accounts naming materially different lines, only the G-Shock family is confirmed, not a specific model. (r/grisaia)
© Frontwing / Project GPT

Rolex Submariner 116610LN: Maki's dive watch is drawn as the ceramic-bezel Submariner Date 116610LN, a gift from her benefactor Nikolaevich within the story. In one visual-novel ending Taiga replaces it with a "Pepsi"-bezel GMT-Master II 126710BLRO, a narrative beat the anime does not depict. Both identifications come from a detailed fan analysis of the series' watch designs. (r/grisaia)
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Patek Philippe (unidentified model): Heiress Taiga arrives wearing a gold Patek Philippe the anime draws as a composite: a rose-gold Nautilus 5990/1R case reading with a 1990s Golden Ellipse dial, per the identifying fan analysis, so no single production reference matches the drawing. In the visual novels her watch, a gift from her cousin Ichiru, reads instead as a vintage Grand Complication on a brown ostrich strap, and the story later has Haruto issue her a plain square G-Shock in its place. (r/grisaia)
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