Since 1983, G-SHOCK has been perfecting its line of tough timepieces for unbeatable durability. The latest octagonal GBM-2100 models are a great addition, combining Bluetooth® and solar power with the classic GM-2100 design. The bands, made from bio-based resin, are long - lasting and eco - friendly. These watches are so versatile that they can easily transition from casual outings to professional meetings. In the iconic 2100 series, the new GBM-2100 models offer a significant upgrade in functionality, merging durability with style. - Module No. 5729 - Case Size: 49.3 x 44.4 x 11.9mm - Weight: 72g - Shock resistant like all G - SHOCK watches - Powered by Tough Solar - Has a double LED light - Allows mobile link via Bluetooth® - Features a hand shift function to clear the view of digital display - Covers 38 time zones with world time, auto DST switching, and more - Comes with a stopwatch, countdown timer, 5 daily alarms, and hourly time signal - Shows battery level and has power - saving mode - Has a full auto - calendar until 2099 - Supports 12/24 - hour format - You can turn on/off button operation tone, swap date/month display, and select day display in six languages - Accurate to ±15 seconds per month without mobile link - Battery lasts about 7 months with normal use after charge and 18 months in total darkness with power - save on.
Using your G - Shock GBM2100A - 1A3 watch is a breeze. To set the time, you can use the mobile link feature via Bluetooth® to connect it to your phone and get an accurate time update. For manual setting, use the buttons on the side of the watch. The stopwatch and countdown timer are easy to operate; just press the relevant buttons to start, stop, or reset. The alarms can be set to wake you up or remind you of important events. Make sure to expose your watch to light regularly, as it's solar - powered. When you're not using it, put it in a dark place to activate the power - saving mode. Keep the watch away from strong magnetic fields and extreme temperatures, as they can affect its performance. Clean the watch with a soft, dry cloth to keep it looking good. Don't let the watch get wet for extended periods, although it can handle normal splashes. That's all you need to know to enjoy your amazing G - Shock watch!
