CITIZEN
[CITIZEN COLLECTION: Pursuing the Basic Performance and Design of Watches] An open-heart mechanical (automatic + manual winding) wristwatch. It features a caliber equipped with a "second hand stop function" that stops the second hand when the crown is pulled out to set the time. This model is packed with the charm of mechanical watches, including a see-through case back that allows you to enjoy the rotating weight and the movement of the mechanism.
[The Charm of Mechanical Watches: Open Heart] A three-dimensional, substantial design combining two separate rings. It features carefully selected functions, such as a sub-dial with a 60-second hand. The open-heart design allows you to enjoy the delicate movement of the balance wheel, the heart of the mechanical watch, from the 7 o'clock position on the dial. The case back is see-through, allowing you to enjoy the rotating weight and the movement of the mechanism. It features a simple adjustment mechanism that allows you to easily adjust the band size yourself.
[Features for Long-Term Use] We have pursued improved durability with the desire for you to use this watch for a long time. With 10 ATM water resistance and a highly durable sapphire crystal, this watch protects your precious timepiece from all kinds of situations.
[Mechanical Automatic Watch] This is a mechanical automatic watch powered by a mainspring. When you wear the watch on your wrist, the movement of your arm moves the rotor inside the watch, automatically winding the mainspring. You can also wind the mainspring manually. The see-through case back allows you to see the rotor and balance wheel in action. (Operating instructions can also be found in the instruction manual on the manufacturer's website.)
[Product Details] Mechanical wristwatch, automatic winding + manual winding, -20 to +40 seconds/day, approximately 42 hours (when fully wound), sapphire crystal, case and band: stainless steel, 10 ATM water resistance