Inspired by the art of forging Japanese katana swords, the MRG-B2000JS embodies the majestic strength and gorgeous beauty of the Juryoku-Maru: San, the katana commissioned by Casio for the flagship MR-G line of timepieces that feature carefully selected colors, materials, and finishes. The timepiece epitomizes the katana world and Japanese aesthetics, imbued with the soul of craftsmanship and incorporating cutting-edge technology throughout. The bezel is made of recrystallized hybrid titanium to evoke the distinctive temper pattern of the sword blade, and the textured band in aogai blue shell lacquer is inspired by the look of Japanese sword scabbards. Limited to 800 pieces worldwide,each with a serial number, The Juryoku-Maru is an original sword commissioned by Casio for the MR-G line with a katana blade forged by master swordsmith Kamiyama Teruhira and an aogai blue shell lacquer scabbard designed by traditional artisan Nomura Mamoru. The beauty of the majestic shine these two craftsmen achieve inspired the San, the Japanese word for brilliant, was added to the sword’s name. The watch band features the aogai-nuri blue shell lacquer design by artist Nomura Mamoru, which adorns the Juryoku-Maru: San scabbard, achieved using a processing technology developed especially for this timepiece. Aogai-nuri refers to the mother-of-pearl inlay used so often in Japanese sword scabbards. Case size (L× W× H) 54.7 × 49.8 × 16.9 mm Weight 154 g Case and bezel material Titanium Band Titanium alloy DAT55G band * DAT55G: DAT is a registered trademark of Daido Steel Co., Ltd. in Japan. Solid Band Tight-lock, 1-press, 3-fold Clasp Construction Magnetic Resistant Shock Resistant Water resistance 200-meter water resistance Time adjustment Bluetooth: Connects to a smartphone and automatically adjusts the time Radio-controlled Watch; Multi band 6 Power supply and battery life Tough Solar (Solar powered) Smartphone Link feature Mobile link (Automatic connection, wireless linking using Bluetooth) Apps CASIO WATCHES App connectivity feature Auto time adjustment Easy watch setting Approximately 300 world time cities Watch status display Self check Phone finder Premium Production Line certificate Glass Sapphire crystal with anti-reflective coating Crown Screw Lock Crown Surface treatment Deep Layer Hardening + AIP(Arc Ion Plating) case Deep Layer Hardening + DLC bezel DLC (Diamond-like carbon) coating band Compatible band size 150 to 205 mm Other Neobrite World time Dual time 27 time zones, Home city time swapping, auto summer time (DST) switching Stopwatch 1-second stopwatch Measuring capacity: 23:59'59'' Measuring modes: Elapsed time Timer Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-minute increments) Alarm/hourly time signal Daily alarm Light LED light (Super Illuminator) Afterglow Light color LED:White