MWC P656 2023 Model Titanium Tactical Series Watch with GTLS Tritium a

  R240211

Watch Model: TP656D/D1/LI/TB

Below is a full description of the TP656D/D1/LI/TB watch, including reported issues, though in many cases, the watches have minimal or no significant issues. Following that, you’ll find the factory specifications, which include all details on dimensions, specifications, and other information related to this model.

These watches are sourced from various defense auctions and disposal sales. Often, we find no real issues with the watches; however, it's assumed they may have minor faults as described below. These watches are sold at a low cost as our service team, due to time constraints, generally performs only a basic check. While issues may not be immediately apparent, any hidden issues tend to be minor and can typically be resolved through service, repair, or a battery replacement, depending on the model.

Watch Details

Model: TP656D/D1/LI/TB
Condition: Excellent, as shown in the images
Fault: Not running. Likely due to a battery issue, though in a worst-case scenario, a Ronda 715li movement replacement is inexpensive.

Factory Description

SKU Code: TP656D/D1/LI/TB

The MWC Tactical Series, with a robust 300m water resistance, was designed for law enforcement, marine, surface, and airborne applications. Built to exceed U.S. W-46374F Type 6 specifications, this model was produced for a bulk contract client and is based on 1990s designs with multiple upgrades. One of the original watches appears in the final image. Key improvements include a solid titanium case and bezel (the original P650 from the 1990s used polyamide), increased water resistance (from 30m to 300m/1000ft), a screw-down crown, and a heavy-duty screw-on caseback. The bezel has high-visibility numerals, and the dial is easy to read even under low light. Swiss Tritium GTLS (Gaseous Tritium Light Sources) provides enhanced luminosity, surpassing conventional luminous watches.

This watch features a high-precision Swiss Ronda Quartz Movement (caliber 715li) designed to withstand high G-forces, with an impressive 10-year battery life and an end-of-life indicator. The watch, water-resistant to 30 ATM (1000 ft/300m), includes a screw-down crown and caseback, making it suitable for law enforcement land or marine use.

A key distinction of this model is its ability to maintain accuracy at altitudes up to 12,000m/40,000ft without pressurization.

The dial displays a tritium symbol, indicating the use of Tritium (a radioactive isotope of hydrogen). The emitted beta particles do not penetrate skin, plastic, or glass. The amount of radioactive gas in the vials is below the personal limit of 25 millicuries, in line with U.S. Nuclear Regulatory Commission regulations (10 CFR 30.15).

Specifications

• Case: Titanium
• Diameter (Excluding Crown): 42mm
• Diameter (Including Crown): 44mm
• Lug-to-Lug: 49mm
• Crystal Diameter: 32mm
• Water Resistance: 300m
• Luminous Material: Swiss Tritium GTLS Tubes
• Movement: Ronda 715li with 10-Year Battery Life
• Crown and Caseback: Screw-down
• Crystal: Sapphire with anti-reflective coating*
• Thickness: 14mm
• Strap: 22mm U.S. Pattern Military Webbing
• Warranty: 24 months

*Many customers ask about the benefits of sapphire crystal over mineral crystal. Synthetic sapphire is highly desirable for its strength and resistance to shattering and scratching, making it ideal for military personnel, security professionals, police officers, and outdoor enthusiasts—who account for over 70% of our customers. When accidents occur that crack a watch crystal, over 90% involve mineral glass. Although we use hardened mineral crystals, they do not match sapphire’s durability under adverse conditions. After manufacturing, sapphire glass undergoes heat treatment to remove internal stresses, which reduces weaknesses, followed by a double layer of anti-reflective coating. Notably, sapphire crystal is also used in the latest iPhones. While sapphire crystal is more costly, it’s typically found only in higher-end watches due to its superior resilience.