How important is it to be able to measure the temperature when out hiking in the mountains or desert? Is it a gimmick? What can you infer from it?

Solar watches are they any good? The answer is YES of you keep them charged adequately, you will get many ears out of them. My oldest Citizen Eco drive is now close to 24 years old and still going (albeit minus the bezel, lost on a deserted Australian beach LOL in the surf).

Showcasing two collectable Citizen eco drive dive watches, the 300m Saturation Professional Diving Watch and the 2014 Aqualand Titanium Nitride coated 200m depth diver, special edition.

Citizen Promaster 200m Diver Nato Band