ProTek PT4105SFC – 4100 Series USMC Carbon Composite Aggressor Black & Camo Dive Watch

Built for professionals, service members, and collectors, the ProTek PT4105SFC Aggressor Semper Fidelis Edition combines the proven performance of the Aggressor platform with a bold, tactical design rooted in USMC heritage.

Based on ProTek’s most aggressive dive watch platform, the PT4105SFC features a rugged 45 mm carbon composite case, 60-click unidirectional ratcheting dive bezel, and 300-meter water resistance, delivering true dive capability in the harshest environments. Each watch is individually tested in both air and water to meet ProTek’s professional standards.

This model stands apart with a fully blacked-out case, bezel, and strap, contrasted by a distinctive green digital camouflage dial. The pixelated camo pattern adds depth and texture while maintaining a tactical, mission-ready look, bringing a modern military aesthetic to the Aggressor platform. Paired with USMC Semper Fidelis commemorative detailing and an embossed USMC caseback, it carries both functional purpose and symbolic meaning.

Powering the watch is a reliable Japanese Citizen/Miyota 2035 quartz movement with a 4-year battery, ensuring consistent timekeeping with minimal maintenance. For visibility in all conditions, the PT4105SFC features Swiss self-powered ProGlo™ tritium illumination, delivering continuous glow for up to 25 years without requiring any external light source.

The watch is fitted with a durable 22 mm rubber strap, secured by a reinforced steel buckle and built for long-term wear in demanding conditions. Designed for both operational use and everyday wear, the PT4105SFC balances rugged performance, stealth construction, and distinctive camo styling.

SPECIFICATIONS:

• Protek Model #PT4105SFC
• Superior Quartz Watch Movement with Tough Shock Protection, Superior Accuracy, and Extended Battery Life
  
  • Miyota 2035 3 Hand & Date Movement
  • 4-Year Battery Life
• 60-Click Unidirectional Ratcheting Elapsed Time Bezel, 5 Minute Interval Indices
• 45mm Carbon Composite Case and Bezel
• Brown, Black, & Green MARPAT Camo Dial and Black Case
• Screw-down Caseback with United States Marine Corps Logo Embossed
• Screw-down black Crown with Double O-ring Water Resistance and Rubber Grip
• Nearly Scratchproof Sapphire Crystal with Antireflective Coating
• Diver's Rubber Strap (22mm x 20mm), with steel tube for the spring pin molded into the strap for added durability and strength
• Water Resistant to 300 Meters (all watches tested to full depth rating in both air and water)
  
• ProGlo™ T100 Swiss Tritium self-powered illumination system that glows continuously for 25 years
  • Green Tritium on Hour Markers 1 thru 11
  • Green Tritium on the Hour, Minute and Second Hands plus the Elapse Time Bezel
  • Orange Tritium on the 12 o'clock Hour Marker

DIMENSIONS:

• Diameter: 45 millimeters
• Thickness: 14.5 millimeters
• Lug Width: 22 millimeters
• Weight: 82 grams