These lightweight metal models, with newly advanced shock-resistant structures, are the latest additions to the MT-G lineup that packs the latest that technology has to offer into shock-resistant designs that combine metal and resin materials. A Carbon Core Guard structure combines with the Metal Core Guard structure to create a new Dual Core Guard structure, which houses a module protected by an integrated carbon monocoque case and exterior metal parts. The New Layered Composite Bands (MTGB2000D/B2000BD) use hollow metal segments that encase fine resin parts, providing the elegant feel of metal along with weight that is 15% less than that of previous models. The metal frames have a new type of slide lever mechanism that makes band replacement quicker and simpler, and metal is also used for the outer case sides. The bezel is separated from the metal frame, which enables greater colouring versatility. The elegantly attractive mirror finish of the exterior metal parts gives these watches their distinctive look. The elegance of these models is further enhanced by high-transparency sapphire crystals, as well as hour markers and inset dials that are precision engraved at the CASIO Yamagata Factory. Features Case / bezel material: Carbon / Stainless steel Solid Band Layered Composite Band One-touch 3-fold Clasp Carbon Core Guard structure Sapphire Glass with non-reflective coating Spherical Glass Neobrite TRIPLE G RESIST (Shock resistant, Centrifugal force resistant, Vibration resistant) Screw Lock Crown Black ion plated bezel 200-metre water resistance Specifications Tough Solar (Solar powered) LED light (Super Illuminator) Afterglow Mobile link (Wireless linking using Bluetooth ) The auto hand home position correction Hand shift feature (Hands move out of the way to provide an unobstructed view of indial) Dual time 27 time zones, Home city time swapping, auto summer time (DST) switching 1-second stopwatch Measuring capacity: 23:59'59 Measuring modes: Elapsed time Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments) Daily alarm Power Saving (hands stop to save power when the watch is left in the dark) Full auto-calendar (to year 2099) Date display Day indicator Regular timekeeping Analog: 3 hands (hour, minute (hand moves every 5 seconds), second) 3 dials (dual time hour and minute, dual time 24 hour, day) Accuracy: 15 seconds per month (with no signal calibration and mobile link function) Approx. battery operating time: 5 months on rechargeable battery (operation period with normal use without exposure to light after charge) 29 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge) Size of case : 55.1x51x15.9mm Total weight : 156gThese lightweight metal models, with newly advanced shock-resistant structures, are the latest additions to the MT-G lineup that packs the latest that technology has to offer into shock-resistant designs that combine metal and resin materials. A Carbon Core Guard structure combines with the Metal Core Guard structure to create a new Dual Core Guard structure, which houses a module protected by an integrated carbon monocoque case and exterior metal parts. The New Layered Composite Bands (MTGB2000D/B2000BD) use hollow metal segments that encase fine resin parts, providing the elegant feel of metal along with weight that is 15% less than that of previous models. The metal frames have a new type of slide lever mechanism that makes band replacement quicker and simpler, and metal is also used for the outer case sides. The bezel is separated from the metal frame, which enables greater colouring versatility. The elegantly attractive mirror finish of the exterior metal parts gives these watches their distinctive look. The elegance of these models is further enhanced by high-transparency sapphire crystals, as well as hour markers and inset dials that are precision engraved at the CASIO Yamagata Factory. Features Case / bezel material: Carbon / Stainless steel Solid Band Layered Composite Band One-touch 3-fold Clasp Carbon Core Guard structure Sapphire Glass with non-reflective coating Spherical Glass Neobrite TRIPLE G RESIST (Shock resistant, Centrifugal force resistant, Vibration resistant) Screw Lock Crown Black ion plated bezel 200-metre water resistance Specifications Tough Solar (Solar powered) LED light (Super Illuminator) Afterglow Mobile link (Wireless linking using Bluetooth ) The auto hand home position correction Hand shift feature (Hands move out of the way to provide an unobstructed view of indial) Dual time 27 time zones, Home city time swapping, auto summer time (DST) switching 1-second stopwatch Measuring capacity: 23:59'59 Measuring modes: Elapsed time Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments) Daily alarm