![Amazon.com: Casio Protrek Tough Solar Powered Environmentally Friendly Biomass Outdoor Sports Watch with Altimeter, Barometer, Compass, and Thermometer Style PRW-61-1. : Patio, Lawn & Garden Amazon.com: Casio Protrek Tough Solar Powered Environmentally Friendly Biomass Outdoor Sports Watch with Altimeter, Barometer, Compass, and Thermometer Style PRW-61-1. : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/81AXqGDgwBL._AC_UY900_.jpg)
Amazon.com: Casio Protrek Tough Solar Powered Environmentally Friendly Biomass Outdoor Sports Watch with Altimeter, Barometer, Compass, and Thermometer Style PRW-61-1. : Patio, Lawn & Garden
![This watch has been amazing to take on hikes. Altimeter was pretty accurate even though I forgot to calibrate it. GW-9400BJ-1JF : r/gshock This watch has been amazing to take on hikes. Altimeter was pretty accurate even though I forgot to calibrate it. GW-9400BJ-1JF : r/gshock](https://i.redd.it/wsxnnjgmvnr71.jpg)
This watch has been amazing to take on hikes. Altimeter was pretty accurate even though I forgot to calibrate it. GW-9400BJ-1JF : r/gshock
![G-Shock Mudmaster GWG-B1000 adds Bluetooth, indicator subdials, new location indicator, sunrise & sunset time | G shock mudmaster, Casio g shock, G shock G-Shock Mudmaster GWG-B1000 adds Bluetooth, indicator subdials, new location indicator, sunrise & sunset time | G shock mudmaster, Casio g shock, G shock](https://i.pinimg.com/736x/c4/f4/9d/c4f49d12445082f81c647b2e262d831e.jpg)
G-Shock Mudmaster GWG-B1000 adds Bluetooth, indicator subdials, new location indicator, sunrise & sunset time | G shock mudmaster, Casio g shock, G shock
![Amazon.com: Casio Protrek Tough Solar Powered Environmentally Friendly Biomass Outdoor Sports Watch with Altimeter, Barometer, Compass, and Thermometer Style PRW-61-1. : Patio, Lawn & Garden Amazon.com: Casio Protrek Tough Solar Powered Environmentally Friendly Biomass Outdoor Sports Watch with Altimeter, Barometer, Compass, and Thermometer Style PRW-61-1. : Patio, Lawn & Garden](https://m.media-amazon.com/images/I/71AuodYcvIL._AC_UY900_.jpg)