At a glance

The PRW-3500-1ER comes with a titanium band that is both lighter and provides an extra added touch of elegance. It is water resistant up to 200 metres and feature Full Auto LED display illumination.



Measuring range: –700 to 10,000 m; Measuring unit: 1 m; Hand indication of altitude differential; Manual memory measurements; Auto log data


A built-in temperature sensor measures the ambient temperature around the watch and displays it on the LCD (range, -10°C /+60°C)

Display unit: 0.1°C (0.2°F)

Battery Level Indicator

An indicator shows the current battery charge level.

Water Resistant

200 Metre/20 Bar


1/10th Sec Stopwatch

Sunrise/Sunset Display

Sunrise and Sunset times are displayed for your chosen location. Ideal for planning outdoor activities.

World Time

31 time zones (48 cities + coordinated universal time)

Low Temperature Resistant

The timekeeping module is designed for operation at very low temperatures, typically -10°C/ 14°F

Power Saving

hands stop to save power when the watch is left in the dark

Solar Power

Tough Solar

Countdown Timer

Countdown range: 24 hours

Measuring Unit: 1 second

Digital 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 declinat

Alarm Function

Daily Alarm: sounds each day at the time you set

Hourly Time Signal: Causes the watch to beep every hour on the hour

Alarm Function

Daily Alarm: sounds each day at the time you set

Hourly Time Signal: Causes the watch to beep every hour on the hour

Auto Calendar

Fully automatic calendar, with allowances made for leap years, pre-programmed to 2099


A built-in pressure sensor measures barometric pressure, which is shown on the display.

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 resul

Time Calibration Signals

Station name: MSF (Anthorn, England) Frequency: 60.0 kHz

12/24 Hour Format

Times can be displayed in either a 12-Hour or 24 Hour Format.

Size of case

56.9 x 53.4 x 14.5 mm

LED backlight (Super Illuminator)

Auto light switch, selectable illumination duration, afterglow

Regular timekeeping

Hour, minute, second, pm, month, date, day

Button Tones On/Off

tone on/off


+/- 15 seconds per month (with no signal calibration)

Related Links

Support Information