I recommend two models that I personally like better for your reference. This Citizen CB0135-07E bezel uses Citizen's super titanium technology, which is hard and wear-resistant, avoiding the problem that the bezel of a general watch is easily scratched. The case uses wear-resistant DLC plating. The movement is Citizen's H145 Eco-Drive movement, which can automatically receive GPS signals and has a six-station radio wave reception function to automatically adjust the proofing time. This watch also uses Citizen’s JIS1 antimagnetic technology, which has strong antimagnetic capabilities. It is 20ATM waterproof and the sapphire crystal is coated with anti-reflective diamond film both inside and outside. Even when viewed under the sun, it will not be dazzling. The case diameter is 45mm, the black case is paired with a yellow calfskin strap, making it perfect for both leisure and business. The official website price is RMB7500. Belt models are generally only suitable for wearing in winter. Wearing it for a long time in summer is prone to sweat stains and odor, so I recommend the steel strap model above. This Citizen CB5007-51H has similar functions to the CB0135-07E, except that it does not have an aviation ruler. The case and strap are made of electroplated IP gun color, which is low-key and calm. Since it does not use Citizen’s super titanium technology and DLC electroplating, the price is slightly lower, only RMB6480. In fact, personally, I prefer the steel belt model, which saves me the trouble of replacing belts. Based on your description, I would like to recommend two Citizen Eco-Drive watches to you. But the first thing to say is that although other watch brands have also launched optical kinetic energy watches, optical kinetic energy is actually a patented technology of the Citizen brand. Of course, this is also one of the important advances in watch movement technology. And what exactly is a light-powered watch? To put it bluntly, the watch can absorb any visible light source and convert it into kinetic energy, thereby driving the watch to continue running. Therefore, on the one hand, the light-kinetic energy watch is very convenient to use, and on the other hand, it is also very environmentally friendly. The first one is the Citizen business and leisure series BV1085-06E watch. This watch is equipped with a light-powered movement. The case is made of stainless steel covered with BIP and has a nylon strap. It has date display and other functions. The watch has a diameter of 42 mm and is waterproof to 100 meters. , the reference price is 2,200 yuan (subject to the actual price). The second one is the Citizen business and leisure series CA4130-56E watch. This watch is also equipped with a light-powered movement. The case and bracelet are made of stainless steel. It has functions such as date display. The watch diameter is 45 mm and is waterproof to 100 meters. The reference price is also 2,200 yuan (subject to the actual price). The above two watches are for reference only, I hope they will be helpful to you. Blessed are you! Citizen just released a new model today! The price is also over 2,000! Let’s find out together! Light kinetic energy world time display ~ the material is stainless steel. Dial width 41mm Dial thickness 10mm Mirror material sapphire crystal. The overall feeling of the watch is better than expected, and it is very suitable for formal wear. It is good for white-collar workers to use as a daily commuting watch. It is also very good for civil servants to wear this watch. There will be no problems at all, and it is powered by light energy. There is no need to worry about winding and stopping the watch. After the first lighting, as long as it is not for several consecutive I put it in the box for a month and eat dirt, but I won’t stop wearing it every day. For more than 2,000, you have a perpetual calendar and world time! The two Eco-Drives on hand are 5,000 or 6,000 Seiko, with three radios, bought in Japan. The Citizen Eco-Drive is around 2,700, with six radios. The Citizen Eco-Drive does not need such a high price to buy on behalf of others. The ordinary model is only around three thousand. Okay, better models are already very good for five or six thousand. Citizen, a Japanese watch brand, started in 1918. CITIZEN brand timing products started in 1924 as a pocket watch. Citizen has always been adhering to the never-ending spirit of innovation and the brand concept of constantly challenging the future, and Citizen has always been in the leading position in the international watch industry. Eco-Drive is Citizen's core technology, and "Eco-Drive" is Citizen's registered trademark, which means promoting and maintaining the ecological environment.