Citizen Promaster Men's Watch, Light-Powered Eco-Drive, Waterproof, SKY, Silver, CA4660-61A

A pilot's watch with a compact 40mm case and a metallic sheen: The Citizen PROMASTER is a genuine sports watch that combines functionality, durability, and safety. This compact model boasts a 40mm case diameter while still featuring aviation slide rule functionality. It boasts excellent visibility, ease of use, and a luxurious sheen. [Metallic Luster] The mirrored edges of the subdials and indexes create a three-dimensional impression. The lugs and crown guard of the case also feature a large mirrored surface, creating a metallic luster throughout the watch. In addition to the aviation slide rule scale, the 1/5-second chronograph scale is also finely marked, creating the precision you'd expect from a pilot's watch. [User-friendly features and performance] Equipped with a solar-powered Eco-Drive system, the watch is hassle-free. It converts even the slightest amount of sunlight or light into electricity. Once fully charged, it continues to run for a long time even in the dark, eliminating the need for periodic battery changes. Water resistance of 20 ATM makes it safe for waterworks and water sports. It also features a convenient date display and luminous hands and indexes. [Product Details] Solar-powered Eco-Drive, accuracy of ±15 seconds per month, solar-powered: approximately 9 months, water resistance to 20 bar, sapphire crystal (anti-reflective coating), case/band: stainless steel, magnetic resistance grade 1, luminous (hands and indexes). *Detailed instructions for using the watch can also be found in the instruction manual on the manufacturer's website (model number: B620). [Charging Information] This Eco-Drive watch uses light as its energy source. A single full charge will last for approximately nine months. We recommend fully charging the watch in sunlight before first use. When you take it off your wrist, store it in a location that is well-lit, so you can use it without worrying about it stopping.