Gold ion plated caseGold ion plated bezelVibration resistantNeobriteSapphire CrystalShock ResistantScrew Lock CrownMud Resistant200-meter water resistanceCase / bezel material: Resin / Stainless steelResin BandDouble LED light LED light for the face (Full auto LED light, selectable illumination duration, afterglow) LED backlight for the digital display (Full auto LED light, selectable illumination duration, afterglow)Solar poweredTime 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 resultsTime 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 kHzThe auto hand home position correctionDigital compass Measures and displays direction as one of 16 points Measuring range: 0 to 359 Measuring unit: 1 60 seconds continuous measurement Hand indication of north Bidirectional calibration Magnetic declination correctionAltimeter Measuring range: 700 to 10,000 m ( 2,300 to 32,800 ft.) Measuring unit: 1 m (5 ft.) Hand indication of altitude differential Manual memory measurements (up to 30 records, each including altitude, date, time) Auto log data (High/low altitudes, cumulative ascent and descent) Others: Relative altitude readings (100m /1000m), Selectable measurement interval: 5 seconds or 2 minutes *1 second for first 3 minutes only *Changeover between meters (m) and feet (ft)Barometer Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg) Display unit: 1 hPa (0.05 inHg)