Citizen Reguno Solar Tech Women's Pair Standard Series Ring Solar Watch KM4-139-91Product Highlights Introducing a new variation of our standard watch featuring Solar Tech. With the addition of a ladies' model, it can also be worn as a pair watch. No need for regular battery replacements. This basic model comes with 10 ATM water resistance. The use of a metal dial for the Ring Solar allows for a beautiful dial design. Product Overview A new variation of our standard watch with a simple and timeless design that you can enjoy for