Sapphire Crystal 100-meter water resistance Case / bezel material: Resin / Stainless steel Resin Band One-touch, slide-adjustable Double-lock three-fold clasp LED backlight (Super Illuminator) Full auto LED light, selectable illumination duration, afterglow Solar powered Low-temperature resistant (10C/14F) 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 Digital compass Measures and displays direction as one of 16 points Measuring range: 0 to 359 Measuring unit: 1 60 seconds continuous measurement Graphic direction pointer Bidirectional calibration Magnetic declination correction Bearing memory Altimeter Measuring range: 700 to 10,000 m (2,300 to 32,800 ft.) Measuring unit: 1 m (5 ft.) Manual memory measurements (up to 30 records, each including altitude, date, time) Auto log data (High/low altitudes, auto cumulative ascent and descent) Trek log data (up to 14 records of high/low altitudes, auto cumulative ascent and descent of particular treks) Others: Relative altitude readings (3,000 to 3,000 m), Selectable measurement interval: 5 seconds or 2 minutes *1 second for firs