Casio Wristwatch G-Shock Metal G-STEEL Bluetooth Equipped Tough Solar Environmentally Friendly Materials Used GST-B1000D-3AJF Men's Green casio Purchased new in 2025/11 Sized at the time of purchase from an online shop Tried on only Condition is almost unused Includes all accessories Box, instruction manual, extra links, eco-bag, tag ● Shock-resistant structure ● Tough Solar (solar charging system) ● 20-bar water resistance ● Mobile link function (functional linkage via Bluetooth® communication with compatible mobile phones) ● Stopwatch (1 second, 30-minute counter) ● Timer (set unit: 1 minute, maximum set: 30 minutes, measured in 1-second increments) ● Time alarm ● Battery charging warning function ● Power saving function (hands stop to save power when left in the dark for a certain period of time) ● Date and day of the week display ● Full auto-calendar ● LED light (Super Illuminator, with afterglow function) ● Operating time from full charge without solar power generation When using functions: Approximately 5 months In power saving state: Approximately 18 months * When not linked with a smartphone, it operates with normal quartz accuracy (average monthly difference ±15 seconds).