Electro-luminescent backlight Auto light switch, afterglow
Low-temperature resistant (–10°/14°F)
Digital compass Measures and displays direction as one of 16 points Measuring range: 0 to 359° Measuring unit: 1° Abnormal magnetic field detect function Bidirectional calibration and northerly calibration function
Barometer Display range: 260 to 1,100 hPa/ mb (7.65 to 32.45 inHg) Display unit: 1 hPa/mb (0.05 inHg) Atmospheric pressure tendency graph *Changeover between hPa and inHg
Thermometer Display range: –10 to 60°C(14 to 140°F) Display unit: 0.1°C(0.2°F) *Changeover between Celsius (°C) and Fahrenheit (°F)
Moon data function (moon age of the input data, moon graph)
Tide graph
Yacht race timer: Built-in time for yacht races Input range: 1 second to 60 minutes Unit: 1 second Other: Auto-repeat, countdown beeper tone switching, reset time setting With repeat timing, stopwatch automatically starts when countdown is complete 1-second stopwatch operation when started from the 0'00" display Measuring capacity: 99'59.59" Measuring modes: Elapsed time, split time, 1st-2nd place times
Daily alarm 5 independent daily alarms
Hourly time signal
Auto-calendar (to year 2039)
12/24-hour formats
Regular timekeeping: Hour, minutes, seconds, pm, date, day
Accuracy: ±15 seconds per month
Approx. battery life: 2 yeasr on SR927W x 4
Size of case SPF-40T ................. 56.4 x 52.1 x 17.0 mm
