What time is it? Watches and horology

From G-Central:

The watch battery is rechargeable with the included proprietary USB cable or by solar. This is not a “Tough Solar” watch, so it cannot be fully powered by solar if all the functions are used regularly, but the time display can be driven by solar alone. The wired charging time is approximately three hours, and a full charge will last about a week when used for about one hour per day, according to Casio. On a full charge without further solar charging, the watch will run for about 35 hours in activity mode with the heart rate monitor on. In watch mode with the heart rate monitor turned off, the battery life is approximately one month, and with power saving on, it is about 11 months.

Also worth noting that it is larger than a regular 5600/5610:

The DW-H5600 is slightly larger than the basic DW-5600, but it is one of the more compact G-SQUAD models. The DW-H5600 with a full resin bezel measures 51.1 x 44.5 x 17.4 millimeters and weighs 59 grams. The models with a hybrid resin and stainless steel bezel (DW-H5600MB) are a little thinner at 16.6 millimeters and weigh 65 grams. (In comparison, the basic DW-5600 measures 48.9 x 42.8 x 13.4 mm and the similarly shaped G-SQUAD GBD-200 measures 48.4 x 45.9 x 15 millimeters.)