These new models embody these efforts in an attractively thin configuration. These new models inherit the octagon form that was also employed for the original DW-5000C. Analog-digital timekeeping comes packed into a no-nonsense simple design without sacrificing G-SHOCK level toughness. High-strength resin material, which is reinforced with carbon fibers, makes it possible to create a case that is a mere 11.8 mm thin, which is the thinnest among G-SHOCK combination models.Carbon Core Guard Structure A new carbon core guard structure protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibers for outstanding strength and crack resistance. Case / bezel material: Carbon / Resin. Double LED light LED light for the face Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow LED backlight for the digital display Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow. World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping. 1/100-second stopwatch Measuring capacity: 00'00''0059'59''99 (for the first 60 minutes) 1:00'00''23:59'59'' (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, split time, 1st-2nd place times. Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments). Full auto-calendar (to year 2099). Accuracy: ±15 seconds per month. Battery life: 3 years on SR726W × 2. I allow all winning buyers ten days from the date of receipt to have the watch examined by a GIA or AGS certified appraiser with the following credentials, Graduate Gemologist , and/or Certified Gemologist Appraiser. The item "Casio G-Shock Red CasiOak 2100 Series GA-2100-4A Watch New GA2100 Carbon Core" is in sale since Wednesday, September 11, 2019. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Watches\Wristwatches". The seller is "timeforjewels" and is located in US. This item can be shipped to United States, Canada, Australia, Japan, South Korea, Indonesia, Taiwan, Thailand, Hong Kong, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Saudi arabia, United arab emirates, Kuwait, Bahrain, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Guadeloupe, Cambodia, Sri lanka, Macao, Martinique, Nicaragua, Oman, Peru, Paraguay, Reunion, Viet nam, Uruguay.