Colour Variations

At a glance

The new Mudmaster model is constructed to resist mud, dust and vibrations in tough environments from deserts and marsh land to construction sites. Built for maximum durability and functionality, Radio Controlled accuracy and Tough Solar power compliment a Triple Sensor which provides accurate Altimeter/ Barometer/ Digital Compass and Thermometer readings for essential assessment of the surrounding environment.


Radio Wave 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

Corrects the time signal automatically


Mud Resistant

Dirt and Mud Resistant construction keeps soil, debris and rubble from getting into the watch

Multiple gaskets are used on pipes that guide buttons from impact. Screw-In crown on the internal gasket further increases mud resistance.

Case/Bezel Material

Resin/Stainless steel

Water Resistant

200 Metre/20 Bar

Vibration Resistant

Resistant against vibration from heavy duty operations

Screw Lock Crown

A gasket between the crown and case maintains a seal that prevents mud and dust entering the watch

Warning Indicator: A red warning strip on the screw shows when the crown is released

Gasket: A gasket between the crown and case maintains a good seal

Triple Sensor

Alitmeter/Barometer,Thermometer, Compass

Low Temperature Resistant

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

Sapphire Glass

Sapphire glass with anti-glare coating


Measuring range: -700 m to 10,000 m (-2,300 ft to 32,800 ft.); measuring unit: 1 m (5 ft.); manual memory measurements (up to 30 records, each including altitude, date, time);

Altitude Addition: This function counts all the metres that have been ascended, giving you the difference between the starting and stopping altitude at a glance.

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

Multiband 6 Radio Controlled

A built-in radio signal receiver ensures that the exact time is displayed across Europe, the US, Japan, and China.


Measuring range: -10°C to 60°C (14°F to 140°F); measuring unit: 0.1°C (0.2°F)


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

Measuring range: 260 hPa to 1,100 hPa (7.65 inHg to 32.45 inHg); measuring unit: 1 hPa (0.05 inHg); atmospheric pressure change indicator (±10 hPa); barometric pressure tendency graph (past 20 hours g

Countdown Timer

Measuring Unit: 1 second

Alarm Function

4 Multi-function Alarms: 1. Daily 2. Monthly 3. Time of Day 4. Date Alarm

World Time

29 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping.

Solar Power

Tough Solar

A high-capacity solar-charging system harnesses the power of any light source for reliable watch operation with minimal impact to the environment.

Magnetic Resistant

The Case has been specially mounted, so to be shielded from magnetic fields.


1/100 second; measuring capacity: 24 hours; measuring modes: elapsed time, split time, 1st and 2nd place times

Auto Calendar

12/24 Hour Formats

Battery Level Indicator

An indicator shows the current battery charge level.

Shock Resistant

Shock Resistant construction protects against impact and vibration

Auto Illuminator

When you tilt the watch towards you, an LED automatically illuminates the watch face

Display Illumination

A luminous coating on the hands and index providing illumination in the dark.

Continuous Operation

About 23 months with the power-saving function*4 ON after full charge *4 Display shuts off after a certain period in a dark location

Button Tones On/Off

tone on/off and mute

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Support Information