Hazard 4 Heavy Water Diver Nightwatch GMT Watch - Black

The Heavy Water Diver Nightwatch B model is a robust yet lightweight watch with a watchcase made of titanium, guaranteeing water resistance of 300 meters. Thanks to its tritium backlight and precise Swiss mechanism, it will perform well in extreme conditions, both underwater and on the surface.

The watch uses a quartz mechanism Ronda 515, powered by a Renata 371 battery. The watchcase with a diameter of 50 mm, made of titanium class 2, provides lightness, durability and hypoallergenic properties.

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

The dial is distinguished by large, clear military-style numerals made with 3D technology. An integrated 24-hour scale makes it easy to read the time in military format, and an additional ring with minute markers improves legibility.

The watch is equipped with a date pad, which indicates the current day of the month. It is protected from scratches by a sapphire glass with an internal anti-reflective coating, improving visibility even in intense light.

The watch is equipped with a GMT function, which allows you to monitor time in two time zones simultaneously. This is done using an additional GMT hand, operating in 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
• slim GMT hand (with an additional marking) - responsible for the second time zone
• 24h scale (1–24) at the edge of the dial - allowing GMT time to be read

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 adjust the main hands. This function is especially useful during travel, when working in an international environment, and when staying in contact with people in different time zones, ensuring clear and quick reading of two independent time displays.

The hands, indexes and zero indicator are equipped with microtubes filled with tritium gas, which guarantee intense, constant illumination without the need for activation. The tritium tubes are elevated 80% above the surface of the dial, which increases their visibility from different angles, not just from above. As a result, tritium illumination provides excellent readability even in total darkness.

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

The durable rubber strap is distinguished by 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 locking mechanism prevents accidental unfastening of the strap.

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 to remove it.

• quartz mechanism
• titanium envelope
• large dial
• clear numerals
• sapphire crystal glass
• tritium backlight
• water resistance 30 ATM
• lightweight design
• diving bezel
• screw-down crown
• ergonomic strap

• Heavy Water Diver Nightwatch GMT - Black
• case

Water sports: High water resistance and durable construction make the watch perfect for diving, swimming, snorkeling or surfing.

Survival and outdoor: Shock resistance, corrosion resistance and resistance to extreme environmental conditions make it an ideal choice for those taking part in trekking, camping or mountain climbing.