Amazon.com: Customer reviews: Casio Men's SGW300H-1AVCF Twin Sensor Multi-Function Digital Sport Watch
Amazon.com: Casio Pro Trek Bio Mass Tough Solar Triple Sensor w/Thermometer Altimeter Barometer Compass World Time Men's Watch PRG340-1 : Clothing, Shoes & Jewelry
Casio Watch SGW300H-1AV User Guide | ManualsOnline.com