Case / bezel material: Carbon / Stainless steel Resin Band Neobrite Spherical Glass Screw Lock Crown Carbon Core Guard structure Magnetic Resistant Shock Resistant Sapphire Glass with non-reflective coating ISO 200 meters Water Resistance LED light (Super illuminator) Afterglow Tough Solar (Solar powered) Time calibration signal reception Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful) *5 times a day for the Chinese calibration signal Manual receive The latest signal reception results Time Calibration Signals Station name: DCF77 (Mainflingen, Germany) Frequency: 77.5 kHz Station name: MSF (Anthorn, England) Frequency: 60.0 kHz Station name: WWVB (Fort Collins, United States) Frequency: 60.0 kHz Station name: JJY (Fukushima, Fukuoka/Saga, Japan) Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga) Station name: BPC (Shangqiu City, Henan Province, China) Frequency: 68.5 kHz Diving mode Dive time: 1 second increments, up to 1:59'59 Surface time measurement: up to 24 hours Log data: up to 30 records Mobile link (Wireless linking using Bluetooth) The auto hand home position correction Dual time 27 time zones, Home time swapping, auto summer time (DST) switching 1-second stopwatch Measuring capacity: 23:59'59 Countdown timer