Casio’s Pro Trek PRJB001EX-1 is available through the company’s US online store, according to a Notebookcheck report published October 8, 2026. The $220 price and estimated shipping time reported that day may change; check Casio’s listing for current availability. Its unusual feature is a reversible band with small storage compartments and a protective side that can cover the watch.
What makes the strap different?
Casio describes the band as a reversible design that can hold small items such as keys or cash, then be turned around to provide protective coverage for the watch. Notebookcheck also reports that the watch can be attached to a carabiner and hung inside a tent or from a backpack. The sources do not give the band a load rating, so it should not be treated as a replacement for a dedicated gear pouch.
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What does the watch include?
The PRJB001EX-1 has a hybrid display with two analog hands, a small digital display and an indicator dial, according to Notebookcheck. Its reported features include:
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- A rotating bezel that Notebookcheck says helps protect the buttons from accidental presses
- 100 m water resistance and low-temperature resistance to -10°C (14°F)
- Support for 38 time zones
- A double LED backlight, stopwatch, timer and alarms
These are reported product specifications, not independent test results.
#1 Best Overall
- Casio's Tough Solar Technology charges your watch by converting light to energy
- Part of Casio's green initiative - Featuring Eco-Friendly Biomass Construction and environmentally friendly / recyclable packaging, paperwork & user's manual
- 100M Water Resistance | Rotating Bezel | Super Illuminator w/ Full Auto LED/LCD Screen
- Bluetooth Ready | Pair with your smartphone, and easily record the date, time, or your position on a map within the Casio App
US price and availability
Notebookcheck reported on October 8, 2026, that Casio’s US online store offered the PRJB001EX-1 for $220, with free shipping estimated at three to five business days. Those are dated retail details rather than guaranteed current terms; the Casio product page confirms the model and band but does not state a price or stock status in the captured listing.
Which model and region does this apply to?
The US model is the Casio Pro Trek PRJB001EX-1, part of the PRJ-B001 Series. Keep the EX-1 suffix in mind: the Japan-market version is identified as PRJ-B001EX-1JR. Notebookcheck says the model launched in Japan in August 2026 and was subsequently available in the US. Its report said European release timing was unclear, so no European availability date is established.
Quick Recap
Best Value
- Environmentally Friendly - Crafted with Bio-Based Resin Materials to reduce impact on the planet
- Triple Sensor Technology includes a Thermometer, Altimeter, and Compass, allowing you to take on the outdoors without worry
- Casio's Tough Solar technology allows you to re-charge your watch without ever needing to replace the battery, to take in for servicing
- 100M Water resistance provides safety during moderate water activities
Rank #4
- Triple Senser; Silicone Band; Tough Solar; Multi Band 6; 100M Water Resistant; Digital Compass w/Bearing Memory
- Altimeter; Barometer; Thermometer; World Time; Full Auto LED Light; 5 Daily Alarms; 1/100th Sec. Stopwatch; Countdown Timer; Full Auto Calendar; Power Saving Function
- Quartz Movement ; Measuring unit: 1 m (5ft) ; Manual memory measurements (up to 30 records, each including altitude, date, time)
- Case Diameter: 51.5mm
- Water resistant to 100m (330ft): in general, suitable for swimming and snorkeling, but not diving
Rank #3
- Tough Solar Power, 100M Water Resistant, Low Temperature Resistant (-10 C / 14 F), Altimeter, Digital Compass, Barometer, Thermometer. Thermometer Display range: -10 to 60 C (14 to 140 F) Display unit: 0.1 C (0.2 F)
- Full Auto LED (Super Illuminator) Backlight with Afterglow, World Time, 31 time zones (48 cities + UTC), city name display, daylight saving on/off, Sunrise/Sunset Data, 5 Daily Alarms (4 one-time and 1 snooze alarm)
- Hourly Time Signal, 1/10 Second Stopwatch, Countdown Timer, 12/24 Hour Formats, Button operation tone on/off
- Storage Battery: Solar Rechargeable Battery, Battery Level Indicator
- Power Saving Function, Approx. Battery Life: 9 months on full charge (without further exposure to light), Module 3415
Rank #2
- Case / Bezel Material: Resin / Stainless Steel
- Silicon Band / Mineral Glass / NeoBrite
- Screw Lock Crown / 100 M Water Resistance
- Case Diameter: 51.5mm
- Water resistant to 100m (330ft): in general, suitable for swimming and snorkeling, but not diving
Sources
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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