Attesa, which incorporates Citizen's cutting-edge technology. It is equipped with high-spec functions that can withstand harsh environments, such as "Eco-Drive," which continues to operate with even the slightest light, and "Radio-controlled watch (World Time)," which supports reception of standard radio waves transmitted from radio wave stations in four areas of the world: Japan, China, America, and Europe. The material used is "Super Titanium," which is scratch-resistant, light, gentle on the skin, and rust-resistant. No need for regular battery replacement "Eco-Drive" is Citizen's unique technology that converts sunlight and even the slightest indoor light into electricity to keep the watch running. Once fully charged, it continues to run for a long time even in the absence of light, so there is no need for regular battery replacement. Scratch-resistant, light, and rust-resistant "Super Titanium" is a material that has been treated with proprietary titanium processing technology and surface hardening technology (Duratect). It is 40% lighter than stainless steel and achieves a surface hardness more than 5 times greater. Always keeps accurate time It receives standard radio waves transmitted based on atomic clocks, which are said to have an accuracy of one second in 100,000 years, and automatically corrects the time and calendar in four areas of the world: Japan, China, America, and Europe. Product Specifications Product Number: CB3010-57A Caliber No.: H128 Power: Eco-Drive (light-powered) Accuracy: ±15 seconds/month (when not receiving radio waves) Operating Time: 2 years (when power save is activated) Radio Wave Reception: Receives radio waves from Japan, China, the US, and Europe Weight: 87g Thickness: 9.3mm Case Size: 40.0mm wide Case Material: Super Titanium Case Surface Treatment: Duratect Titanium Carbide (Silver color) Band Material/Type: Super Titanium, Three-fold push type Adjustable Band Size: 150～194mm Glass: Sapphire glass (anti-reflective coating) Water Resistance: 10 bar water resistance Country of Origin: Made in Japan Returns and exchanges after purchase are not accepted to prevent product substitution. Thank you. SEIKO CITIZEN