My wife is hard on watches. She doesn't mean to be, but for some reason her watches tend to stop running for mysterious reasons, slurp up batteries every two months, and get broken (once as a service person changed a battery, he reset the time, twisted the stem too hard and it never worked correctly again). She stopped wearing a watch, using her cell phone to check the time. I knew she wanted another watch, but she didn't ask me for one. But as a surprise birthday gift, I selected the Citizen eco-drive. The eco-drive doesn't depend on a battery (which will have to be changed), or winding the stem, or even the kinetic (your movement powers it). The eco-drive has a solar cell which powers the watch, using sunlight or even light in her office. I set the time and she strapped it on. She likes the two-toned watches because they go with everything, and is pleased to not to have to worry about what to do when the battery dies. She was very happy to be surprised, and very appreciative to her loving husband.