Casio EFR545SBDB-1B Wristwatch Tough Solar Stainless steel watch

100 m, 1/5 s, 12/24 h, ±20 s/month The new EFR545 series of timepieces are powered with Casio’s Tough Solar technology. These eco-friendly solar battery-powered timepieces can be charged even in low or fluorescent light, eliminating the need for continuous battery changes.

In addition, the EFR545 series of watches come equipped with a 1/5th second chronograph, tachymeter, 12/24 hour sub-dial, and are water resistant up to 100 meters and also feature a low battery alert.