![Casio unveils Pro Trek WSD-F30, a rugged smartwatch that lasts up to 30 days on a charge | VentureBeat Casio unveils Pro Trek WSD-F30, a rugged smartwatch that lasts up to 30 days on a charge | VentureBeat](https://venturebeat.com/wp-content/uploads/2018/08/photo2_rg.jpg?fit=1440%2C810&strip=all)
Casio unveils Pro Trek WSD-F30, a rugged smartwatch that lasts up to 30 days on a charge | VentureBeat
![Amazon.com: Casio Men's 'Vintage' Quartz Metal and Resin Casual Watch, Color:Black (Model: F-91WM-7ACF) : casio: Clothing, Shoes & Jewelry Amazon.com: Casio Men's 'Vintage' Quartz Metal and Resin Casual Watch, Color:Black (Model: F-91WM-7ACF) : casio: Clothing, Shoes & Jewelry](https://m.media-amazon.com/images/I/717AT2hzTXL._AC_UY1000_.jpg)
Amazon.com: Casio Men's 'Vintage' Quartz Metal and Resin Casual Watch, Color:Black (Model: F-91WM-7ACF) : casio: Clothing, Shoes & Jewelry
![Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio](https://i.redd.it/casio-f-30-early-90s-simple-vintage-just-spent-20-minutes-v0-l3higfetv6i81.jpg?width=3120&format=pjpg&auto=webp&s=59bd9cb577f1cd4f927d62d27aea285291afeb3b)
Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio
![Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio](https://i.redd.it/casio-f-30-early-90s-simple-vintage-just-spent-20-minutes-v0-ynrzcs9tv6i81.jpg?width=2722&format=pjpg&auto=webp&s=ce31c550e6dc741d7ab84fd0028caaa5573c007a)