According to ProTek, the brand has launched the Aggressor Series 4000, a 45mm carbon composite dive watch featuring self-powered tritium tube illumination and a Miyota 2035 quartz movement priced at $575. While the broader watch market has spent recent years shrinking dive and field watches toward 38mm and 40mm vintage proportions, ProTek has built its largest model yet to prioritize instant legibility in zero-light environments.
The ProTek Aggressor Series 4000 Case and Carbon Composite Design
The ProTek Aggressor Series 4000 breaks from current industry trends toward smaller dimensions by introducing a 45mm carbon composite case. According to ProTek, carbon composite is lighter than steel, tougher than standard polymers, and resistant to impact and corrosion. Despite measuring 14.65mm thick with a 52.3mm lug-to-lug distance, the material keeps the watch’s total weight down to 82 grams.
Additional build specifications include a 60-click unidirectional bezel featuring deep notches designed for gloved hands, a screw-down crown, and a flat sapphire crystal coated with anti-reflective material. The watch provides 300 meters of water resistance, which ProTek states is pressure-tested in both air and water. The lineup consists of four distinct models—the all-black stealth configuration alongside variants with matching colored crowns and rubber straps in yellow, orange, and light blue.
Trigalight Tritium Illumination Versus Traditional Lume
The defining feature of the Aggressor is its self-powered illumination system. As noted by ProTek, the watches utilize Pro-Glo T100 tritium tubes—gaseous tritium sealed inside micro glass tubes embedded directly into the dial and hands. Unlike standard Super-LumiNova, which requires absorption of sunlight or artificial light to glow, trigalight technology operates continuously without batteries or external charging.
The system is rated by ProTek to maintain its glow for approximately 25 years. The larger 45mm dial format provides extra room for the tritium layout, which glows green and blue with an orange marker positioned at the twelve-o’clock position.
Pro Tip: When evaluating tactical tool watches, check whether the illumination relies on external charging or self-powered gas tubes. Tritium tubes offer consistent visibility in zero-light environments without needing exposure to direct sunlight beforehand.
Pricing, Movements, and Market Positioning
Priced at $575, with colored variants temporarily marked down to $550, the Aggressor runs on the Miyota 2035 quartz caliber. According to ProTek, this no-jewel movement is inexpensive to service and widely utilized in watches well below the $50 threshold.
ProTek was founded in 2022 by Barry Cohen, who previously established Luminox in 1989. The brand’s catalog predominantly features 42mm models and a 40mm field watch, making the 45mm Aggressor its largest offering to date. The brand also maintains a designation as an Official Watch of the U.S. Marine Corps, a badge shared across its broader product line.
Frequently Asked Questions
What is the case size of the ProTek Aggressor Series 4000?
According to ProTek, the Aggressor features a 45mm carbon composite case.
How long does the tritium lume last on the Aggressor?
The Pro-Glo T100 tritium tubes are rated to maintain their self-powered glow for approximately 25 years without requiring batteries or sunlight exposure, according to ProTek.
What movement does the ProTek Aggressor use?
The watch runs on the Miyota 2035 quartz caliber.
What is the water resistance rating of the ProTek Aggressor?
According to ProTek, the watch offers 300 meters of water resistance, tested in both air and water.
Join the Conversation
What are your thoughts on pairing a Miyota quartz movement with a carbon composite case and tritium tubes at this price point? Let us know in the comments below, and explore our other watch collecting guides for more affordable tool watch recommendations.
Related reading