[Amazon.co.jp Exclusive] Bespoke Model, Black Solartech Radio-controlled Pocket Watch (Pocket Watch) A limited model finished in “black” with a case, a dials, and even arabic numbers. The 41 mm diameter case is a size that makes it easy to see and does not obscure the view. Since it has a hook-attached link, it can be safely placed in a top or pants Pocket. The design element is also detailed and can only be obtained here. Solartech radio watch, case material: STAINLESS; Accuracy: ±15 sec/month (when not receiving); Water protection for daily use (3 bar water protection); Photoelectric power: approx. 2 years of operation on a full charge; Power Save; Perpetal calendar; On-time receiving function; Forcible receiving function; charge alert function; overcharge protection [“Solartech” that does not need to be exchanged on a regular basis] A function that converts light into electric energy to drive a watch. It does not need to be swung on a perimen basis because it is being reused by the lance of the Sun It can run for about 2 years on a full reg (when the POWERSAVES is in use). Since it uses light as energy, if you place it in a place where the light or light can easily hit, you can use it stabilly without running out of charge. [A “radio clock” that automatically correct the time] The error automatically changes the time or calendar by receiving standard radio waves that are based on an chemical clock that is said to be 1 second per 100,000 years. Accurate time can be obtained by receiving radio waves from two places in Fukushima and Kyusyu. [REGUNO (REGNO)] The Regno is a basic, and easy, standard watch at a low price. We have prepared a full line up of men's, women's, pair, and pocketwatch products. Beyond the exhilaration of a wide range of people, jobs, and genders, we have such products that anyone can easily request and [Right Location of Palwon] has REGUNO at any time. [About Solartech's recharge] The watch always works well when placed in the face with the light of the dial/ When placed in the light of the dial/ Please charge in the sun at least once a month. When you store it in a place out of the place where it is not in the place where it is in the first place, please /charge alert function: Please charge when you have been working for 2 seconds ※You can also check the Japanese manual pdf on the maker's website Be sure to check the detailed product description at the bottom and the points to keep in mind when you buy before you buy! Materials: glass, Stainless steel To request a return or exchange, please note that it is mandatory to provide a video of the unpacking of the package.