Seiko Selection Titanium Solar Watch with World Time Function SBTM291 [Seiko Watch] Radio-Controlled

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. Includes original packaging, instruction manual, and warranty. Fully automatic calendar function (until December 31, 2099) World time function (25 time zones) Radio wave correction function (receives standard radio waves from Japan, China, the United States, Germany, and the United Kingdom) Automatic reception function (reception area switching method based on time zone selection)