Unverified reference candidate
Casio
GRB300-1A4
- Band
- Bio-based resin band
- Case and bezel material
- Bio-based Carbon / Bio-based resin
- Case dimensions (L×W×H)
- 59 × 54.7 × 15.7 mm
- Construction
- Shock ResistantCarbon Core Guard structure
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Search results and retailer pages may include other models. Check the exact reference, seller, condition and delivery terms on the destination website.
Source facts, when present, require editorial review. The image source and display method are identified with the illustration.
Distributor product details
These labeled facts were extracted automatically from the Casio Australia distributor for this exact source and reference. They require independent review and are not a published editorial profile.
- Band
- Bio-based resin band
- Case and bezel material
- Bio-based Carbon / Bio-based resin
- Case dimensions (L×W×H)
- 59 × 54.7 × 15.7 mm
- Construction
- Shock ResistantCarbon Core Guard structure
- Power supply and battery life
- Tough Solar (Solar powered)
- Water resistance
- 200-metre water resistance
- Weight
- 71 g
- Compatible band size
- 145 to 215 mm
- Crystal
- Mineral Glass
- Accuracy
- Accuracy: ±15 seconds per month (with no mobile link function)
- Alarm/hourly time signal
- Daily alarm
- Calendar
- Full auto-calendar (to year 2099)
- Light
- LED light (Super Illuminator) Afterglow
- Other features
- Date display Day indicator Regular timekeeping: Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)
- Stopwatch
- 1-second stopwatch Measuring capacity: 23:59'59. Measuring modes: Elapsed time, split time
- Timer
- Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
- World time
- Dual time (Home City time swapping)
Observed 2026-10-03 · Regional scope: Australia · Unverified extraction.
Original manufacturer wording is retained for source data without a reviewed translation.
Recorded discovery details.
- Brand
- Casio
- Reference token
- GRB300-1A4
- Collection candidate
- Not established
- Family candidate
- GRB300
- Product type
- Watch candidate
Official discovery source
The exact token was retained from a stored official manufacturer URL or feed. The source supports discovery, but does not by itself verify every model detail.
Open official manufacturer page ↗Source record: feed-casio-76e10acf45c7300e · Publication eligible: no.
More from GRB300
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As an Amazon Associate I earn from qualifying purchases.
These are discovery candidates, not verified alternatives or product variants.