ProMaster Watch Solar Powered 20 ATM Water Resistant Aviation Slide Promaster SKY Series Sapphire Glass Business Analog Luminous Chronograph Silver

[A pilot's watch with a compact 40mm case size and a metallic shine] The Citizen PROMASTER is a genuine sports watch that combines functionality, durability, and safety. This compact model features an aviation slide rule function while maintaining a case diameter of 40mm. It is a watch that boasts excellent visibility and operability, as well as a luxurious shine. [Metallic Sheen] The edges of the sub-dials and the indices have a mirrored finish that gives them a three-dimensional appearance. The case lugs and crown guard also feature a wide mirrored surface, creating a metallic sheen throughout the watch. In addition to the aviation slide rule markings, the 1/5 second chronograph markings are also finely engraved, giving it the precision befitting a pilot's watch. 【User-Friendly Features and Performance】Equipped with Eco-Drive light-powered technology, it's hassle-free. It converts even faint sunlight or light into electricity. Once fully charged, it continues to operate for long periods even in the dark, eliminating the need for regular battery changes. 20 ATM water resistance makes it safe for water-related work and water sports. Convenient date display and luminous hands and indices. [Product Details] Eco-Drive light-powered watch, accuracy ±15 seconds/month, power reserve: approx. 9 months, 20 ATM water resistance, sapphire crystal (anti-reflective coating), case/band: stainless steel, magnetic resistance (Type 1), luminous hands and indices. *Detailed instructions for operating the watch can also be found in the instruction manual on the manufacturer's website (model number: B620). [About Charging] Eco-Drive uses light as energy. Once fully charged, it will operate for approximately 9 months. We recommend fully charging it using sunlight when you first start using it. Also, when you take it off your wrist and put it down, store it in a place where it is exposed to light or illumination so that you can use it without worrying about the watch stopping during your daily life.