MWC 24 Jewel 300m Automatic Military Divers Watch on NATO Strap with Tritium GTLS and Sapphire Crystal - Running but Needs Attention to Crown

£365.00 £99.00 99.00

Qty

DW377

This watch is a SUA/SL/SS/NA below is a full description of this particular watch and the issues which it has (or is reported to have because in many cases the watches do not have significant issues, below that is the full information relating to this model from the factory website which gives full details of all of the dimensions, specification and other information relating to the watch.

We buy these watches from various defence auctions and other disposal sales and it's frequently the case that we find that there is actually nothing wrong with the watch but it has to be assumed it will have some form of fault though in most cases it's very minor or as described below. These watches are disposed of at low-cost because we find that one of the problems is pressure of time for our service staff in the UK and elsewhere and in most cases they have given them a quick check over and nothing is immediately apparent though we have to assume that there is either no real fault with the watch or something will reveal itself over time in which case it’s normally a simple case of a service, repair or battery exchange depending on the exact model.

Model: SUA/SL/SS/NA

Condition: Good as new as can be seen in the images

Fault: The watch is running fine but the crown will not lock into position hence needs attention but this should be a minor repair for anyone with basic horological skills or the services of a watchmaker.

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FACTORY DESCRIPTION

These robust 300m water resistant watches were specifically designed for divers and general marine applications. The ceramic bezel has high visibility numerals and the dial is also very clear and easy to read even under adverse light conditions. The watch uses Tritium GTLS (Gaseous Tritium Light Sources) which are significantly brighter than any conventional luminous watch.

The timepiece features a high quality NH35A Automatic 24 Jewel movement and is water resistant to 30 ATM (1000 ft/300m). The case and bracelet are made of stainless steel.

The crystal is military grade sapphire which is highly scratch resistant with two internal layers of non reflective coating. The dial features a radioactive tritium symbol. Tritium is a radioactive isotope of hydrogen. When it decays, it emits beta particles although these do not penetrate skin, plastic, glass, etc. Whilst the vials contain radioactive gas even when they are all taken together they contain less than the personal limit of 25 millicuries - see U.S Nuclear Regulatory Commission regulations 10 CFR 30.15.

Dimensions and Specification:

  • 300m / 1000ft Water Resistant
  • Movement: Cal. NH35A 24 Jewel Automatic
  • GTLS Tritium Light Sources
  • Width: Excluding Crown: 40mm
  • Width including Crown: 45mm 
  • Thickness: 15mm
  • Ceramic Scratch Resistant Bezel
  • Crystal Diameter: 31mm
  • Crystal Type: Sapphire with anti reflective coating*
  • Lug to Lug: 49mm
  • Weight 170g
  • Screwdown locking crown
  • 20mm NATO Strap
* A lot of people ask us what are the benefits of sapphire crystal over a standard mineral crystal? The answer is that synthetic sapphire is by far the best material for watch crystals because it is very strong and also shatter and scratch resistant, these characteristics make it very appealing to military and security personnel, police officers and people who lead active outdoor lifestyles, these groups account for over 70% of our customers. To get things into perspective we find that when clients have accidents with watches resulting in a cracked crystal over 90% are usually watches with mineral glass crystals, even factoring in that we use hardened mineral crystals they still do not come close to sapphire for durability under adverse conditions. The reason that sapphire crystals are so strong is that after the sapphire glass is manufactured it is also heat-treated to remove its internal stresses—which can cause weakness—it is then made into the watch crystals and two layers of anti-reflective coating are applied, interestingly sapphire crystal is now used on the latest iPhone. Of course sapphire crystal comes at a price hence you find that it's normally only fitted to higher end watches.