Hazard 4 Heavy Water Diver Nightwatch GMT Watch - Black

The Heavy Water Diver Nightwatch B is a robust yet lightweight watch with a case made of titanium and guaranteed water resistance to a depth of 300 metres. Thanks to its tritium backlight and precise Swiss movement, it is suitable for use in extreme conditions, both underwater and on the surface.

The watch uses a Ronda 515 quartz movement powered by a Renata 371 battery. The case with a diameter of 50 mm, made of titanium grade 2, ensures lightness, durability and hypoallergenic properties.

Water resistance of 30 atmospheres effectively protects the watch during diving to a depth of 300 m and swimming. The unidirectional, fluted diving bezel is equipped with a tritium zero indicator, and the large screw-down crown allows for easy operation - even when wearing gloves or underwater.

The dial features large, clear 3D military-style numerals. The integrated 24-hour scale makes it easy to read the time in military format, and an additional minute ring improves readability.

The watch is equipped with a date display that shows the current day of the month. Sapphire glass with an internal anti-reflective coating protects against scratches and improves visibility even in bright light.

The watch is equipped with a GMT function, which allows you to monitor the time in two time zones simultaneously. This is achieved by means of an additional GMT hand, operating on a 24-hour cycle and working together with the 24h scale placed on the dial.

The dial features:

• standard hands (hour and minute) - indicating local time
• a slim GMT hand (with an additional marking) - responsible for the second time zone
• a 24h scale (1–24) at the edge of the dial - enabling GMT time reading

This solution makes it possible to track local time and the time in another region of the world at the same time, without the need to interfere with the main hands' settings. This function is particularly useful when travelling, working in an international environment, and keeping in touch with people staying in different time zones, ensuring clear and quick reading of two independent time indications.

The pointers, indices and zero indicator are equipped with microtubes filled with tritium gas, which guarantee intense, constant illumination without the need for activation. The tritium lamps are raised 80% above the surface of the dial, which increases their visibility from different angles, not just from above. This means that the tritium illumination is perfectly legible even in complete darkness.

Tritium has a half-life of 12 years, which means that after this time, the brightness of the illumination will be reduced by half.

The durable rubber strap has a grooved texture with a map motif and numerous holes that effectively wick away moisture, improve ventilation and prevent sweat from accumulating on the wrist. The material used is resistant to moisture and sweat, making it suitable for intense activities. A special lock prevents the strap from accidentally coming loose.

The quick-change strap system, based on screw-in pins, allows the watch to be easily adjusted to the user's preferences. A Torx 6 screwdriver is required for disassembly.

• Quartz movement
• Titanium case
• Large dial
• Clear digits
• Sapphire glass
• Tritium backlight
• Water resistant to 30 ATM
• Lightweight design
• Diver bezel
• Screw-down crown
• Ergonomic strap

• Heavy Water Diver Nightwatch GMT watch - Black
• case

Water sports: High water resistance and a durable design make the watch perfect for diving, swimming, snorkelling or surfing.

Survival and outdoor: Shock and corrosion resistance, as well as resistance to extreme environmental conditions, make it the ideal choice for trekking, camping and mountain climbing.