Model PT4105SFC USMC Carbon Dive
The ProTek Model PT4105SFC USMC Carbon Dive is a rugged, high-performance dive watch built for those who demand reliability in the harshest environments. Featuring a 45mm carbon composite case, 300-meter water resistance, and a 60-click unidirectional ratcheting bezel, this watch is engineered for serious divers, military personnel, and outdoor adventurers alike. Every watch is individually tested in both air and water to ensure it meets the highest standards before it ever reaches your wrist.
At the heart of this watch is the Swiss self-powered Pro-Glo T100 tritium illumination system, which glows continuously for 25 years without any need for an external light source – shining 100 times brighter than conventional photoluminescent lume. Paired with a dependable Japanese Miyota 2035 quartz movement and a genuine rubber strap with a reinforced steel buckle, the PT4105SFC delivers the kind of no-nonsense durability and readability that demanding conditions require.
Key Features
- 45mm Carbon Composite Case: Lightweight yet exceptionally tough – built to withstand the rigors of diving, tactical use, and everyday wear.
- 300-Meter Water Resistance: Individually tested in both air and water for verified performance – suitable for scuba diving and beyond.
- 60-Click Unidirectional Ratcheting Dive Timing Bezel: Precise, secure elapsed-time tracking for underwater safety – bezel only rotates counterclockwise to prevent accidental air overestimation.
- Swiss Pro-Glo T100 Tritium Illumination: Self-powered, continuous glow for 25 years – no charging required, and 100x brighter than standard lume systems.
- Sapphire Crystal with Antireflective Coating: Scratch-resistant crystal with AR coating for clear, glare-free readability in any light condition.
- 316L Stainless Steel Screw-in Crown: Features multiple O-rings for a watertight seal and long-lasting corrosion resistance.
- 316L Stainless Steel Embossed Signature Caseback: Screw-in caseback adds a secure, stylish finish and protects the movement.
- Japanese Miyota 2035 Quartz Movement: Reliable 3-hand quartz movement with a 4-year battery life for low-maintenance timekeeping.
- Genuine Rubber Strap (22mm x 20mm): Reinforced with a steel tube molded in for spring pin durability – comfortable and secure in wet or demanding conditions.
- Weight: 82g | Lug Width: 22mm: Solid and substantial without being overly heavy – a well-balanced wear for all-day use.
Shipping
Please email us at [email protected] for a delivery ETA or to confirm shipping details.
What’s Included
- ProTek Model PT4105SFC USMC Carbon Dive Watch
- Genuine rubber strap with steel signature buckle
Why You’ll Love It
The ProTek PT4105SFC is the kind of watch that earns trust – not through marketing, but through proven engineering and real-world performance. The tritium T100 illumination system means you’ll never be left in the dark, whether you’re navigating a night dive or operating in low-light tactical environments. The carbon composite case keeps weight down without sacrificing the toughness that demanding use demands, and every watch leaving the factory has been tested to verify its water resistance claims – not just certified on paper.
With a 4-year battery, 25-year tritium glow, and materials built to resist corrosion and impact, this is a watch you can genuinely rely on for years to come. Whether you’re a diver, military professional, or simply someone who wants a serious tool watch that can keep up with your lifestyle, the PT4105SFC delivers performance you can feel confident in every single day.
Product Specifications
| Brand | ProTek |
|---|---|
| Model | PT4105SFC USMC Carbon Dive |
| Case Size | 45mm |
| Case Material | Carbon Composite |
| Caseback | 316L Stainless Steel, Screw-in, Embossed Signature |
| Crown | 316L Stainless Steel, Screw-in with Multiple O-rings |
| Crystal | Sapphire with Antireflective Coating |
| Bezel | 60-Click Unidirectional Ratcheting Dive Timing Bezel |
| Movement | Japanese Miyota 2035 Quartz 3-Hand |
| Battery Life | 4 Years |
| Illumination | Swiss Self-powered Pro-Glo T100 Tritium – 25 Year Continuous Glow |
| Water Resistance | 300 Meters (tested in air and water) |
| Strap | Genuine Rubber, 22mm x 20mm, with Steel Signature Buckle |
| Lug Width | 22mm |
| Weight | 82 grams |
FAQ
Tritium is a self-powered, radioactive isotope of hydrogen that emits a constant glow without any need for an external light source. Unlike photoluminescent lume – which must be “charged” by exposure to light and fades within hours – the Pro-Glo T100 tritium system on this watch glows continuously for 25 years and is 100 times brighter than conventional lume. This makes it ideal for diving, tactical use, or any situation where reliable, always-on illumination is critical.
Yes. The PT4105SFC is water resistant to 300 meters, which far exceeds the depth requirements for recreational and technical scuba diving. It features a screw-in crown with multiple O-rings, a screw-in caseback, and every watch is individually tested in both air and water before shipping to verify its water resistance rating.
The 60-click unidirectional ratcheting bezel allows divers to track elapsed time underwater. Because it only rotates counterclockwise, any accidental bump or knock will only make the time reading appear shorter – never longer – which is a critical safety feature. If your elapsed time appears shorter than it actually is, you’ll surface sooner, which errs on the side of caution for air supply management.
The Miyota 2035 quartz movement is rated for a 4-year battery life under normal use. When the battery needs replacing, it should be taken to a qualified watchmaker or service center to ensure the water-resistant seals are properly reseated and the watch’s water resistance rating is maintained after servicing.
The PT4105SFC has a 22mm lug width, which is a widely available standard size. This means you have a broad selection of aftermarket straps available – rubber, nylon NATO, leather, or metal bracelets – all in 22mm width will fit this watch.
