Product Details

This model in both PVD and Stainless Steel versions is now sold out and and discontinued. It was made for a procurement company who had secured a contract to supply a watch to this particular specification and differs in some ways from other 100 ATM watches which we manufacture most of the additional requirements that were specified for the contract are outlined below.

SKU: 100AT/12/SS/QZ/ST

The MWC "Depthmaster" Military Diver models are MWC's latest heavy-duty range and are both extremely robust with a sapphire crystal as well as being suitable for diving with mixed gases at extreme depths due to the 100atm water resistance rating, they also have a wider strap at 24mm (most military divers watches use a 20mm strap) and a non-scratch ceramic bezel which is easier to grip in extreme cold. These watches are specifically designed for use by professional divers under very challenging conditions.

All MWC 100ATM models are fitted with a helium escape valve, people often ask us how helium gets into a dive watch in the first place and the answer is very simple, essentially a helium molecule is among the smallest of all molecules. What this means is because they are so small even though the seals are working fine to keep water out the helium molecules can still get through and enter the watch even though other gases and water cannot.

The main users professionally of watches with helium escape valves are saturation divers who spend long periods of time at great depth with high pressure, the result is that the helium molecules can build up inside the watch creating pressure inside the case, this can inflict serious damage to the watch and even blow out the crystal or crown when it’s unscrewed, this is potentially extremely dangerous if for example you are just checking or resetting the time, it can also potentially write off the watch. What the helium escape valve does is automatically allow the helium molecules to escape from the watch during decompression when the watch returns to normal standard sea level pressure. The valve is only one way so it lets the helium out but prevents anything external from getting in.

For anyone who does not know why helium is an issue, it’s important to understand why helium is employed for deep diving. The reason is that helium is one of the very few gasses which does not have negative effects such as we see with nitrogen which causes nitrogen narcosis, consequently helium is used to replace nitrogen in most deep-sea mixed gas diving applications.

In some situations, professional divers can operate at great depth for extended periods where they live in dry environments pressurised with an oxygen/helium mix. When the divers surface and decompress after days or even sometimes weeks this gas must be removed to prevent problems as mentioned earlier such as the crystal or crown being blown out which can potentially injure or even blind someone.

The reality is that most divers will not be living in a pressurized environment for days or weeks on end, this means they will have no need for a watch equipped with a helium valve, regardless of how deep they dive but with deep diver watches such as our 100ATM range, it's essential the valve is there just in case it’s needed because the watch would not be fit for purpose without it.

Whilst this watch is very similar to our other 100 ATM models it was produced specifically for a military procurement contract, the contractor specified that the watch should be designed to maintain high levels of accuracy at altitudes up to 12,000m / 40,000ft without compensatory pressurization. There was an additional requirement that the watch be resistant to magnetic fields up to 4,800 A/m, or about 60 gauss. Quite why these two requirements were specified we don't know but they were unusually demanding specifications hence, this watch is slightly different to other watches in the 100ATM range because of the two features referred to above, and also the fact that the contract specified the watches be unbranded with a sterile dial.

This particular variant has a European NATO pattern dial and is finished in brushed stainless steel. The movement is a Ronda 715li movement with 10-year battery life and a hacking function to enable synchronization.

Dimensions and Specification:

•     Movement: Swiss Ronda 715li with 10 Year Battery Life and hacking function
•     Water Resistance: 100atm / 3,280ft / 1000m
•     Screwdown crown
•     Helium Escape Valve
•     Width: Inc Crown 47mm (Exc Crown 44mm)
•     Bezel Type: Unidirectional Non-Reflective with Ceramic Insert
•     Thickness: 18mm
•     Crystal Diameter: 31mm
•     Crystal Type: Sapphire with Anti Reflective Coating*
•     Lug to Lug: 48mm
•     Weight: 132g
•     Case: 316L Stainless Steel
•     Illumination: Luminova on markers, hands, and bezel
•     Strap: 24mm NATO Webbing Strap  (1 x Black and 1 x Grey)

* 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% 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.

• Delivery

  • Delivery charges are as follows:

    USA/CANADA	EUROPE	UK	REST OF THE WORLD
    Tracked Mail US$11.50	Tracked Mail €11.75 / £10.25 / US$11.50	Tracked Mail  £9.95	Tracked Mail US$11.50 / €11.75 / £10.25
    Express Courier UPS or FedEx  US$25.00	Express Courier UPS or FedEx  €27.50 / £24.00 / US$27.00	Express Courier  UPS £12.95	Express Courier UPS or FedEx  US$41.50 / €42.50 / £36.50

    You will generally receive two emails after placing an order, the first will be a confirmation of receipt of the order and payment, this will be followed by a notification of shipment  once the goods are dispatched. When an order and payment has been processed, goods will be shipped by the Post Office or Courier within 48 hours. Please note that our shipping centers are closed on Saturdays and Sundays therefore orders placed during this time may take up to 72 hours to be dispatched, this includes orders after 13:00 European time on Fridays.

    The estimated delivery times in working days are set out below: *

    • USA Registered Mail: 4 to 12 days
    • USA UPS: 2 to 3 days
    • Europe UPS: 2 to 5 days
    • Europe Registered Mail: 7 to 14 days
    • UK DPD or UPS: 12 to 48 hours
    • UK Royal Mail: 1 to 3 days
    • Rest of World UPS: 3 to 10 days
    • Rest of World Registered Mail: 7 to 21 days

    All shipping estimates exclude Saturdays and Sundays when our packing and shipping centres are closed and also some countries postal services do not operate at the weekend.
    

    * Some countries are prone to be notoriously slow to process goods on arrival, among these countries are Israel, Hong Kong, Macau, Mexico, South Africa and some South American countries. We also tend to experience significant delays with many countries in Africa in addition to South Africa, you can always contact us for advice although we do not know with certainty exactly which countries will be slow, and which will be fast but the above estimates are a pretty good guide for most countries, keen in mind remote territories or those with slow customs processing can also tend to be problematic. Regardless of the processing speed, all of our shipments are fully insured against Loss.

    Please Note: We recommend using UPS, DHL or Fedex, which we offer as an option, if the delivery is very time sensitive and you are aware that your local Postal Service he's not particularly reliable.

    Whilst we make every effort to deliver your order within the above timeframes this is a guide and delivery cannot be guaranteed. We will not accept responsibility for delays caused by our Couriers or any National postal service. If the goods are not delivered within the time we have estimated, please feel free to contact us or email admin@mwc.watch, and we will do everything possible to resolve the issue promptly. We will not be liable for any loss caused to you by late delivery.

    Our delivery charges covers the cost of shipping the goods to you. However, this does not include import charges and administration fees to clear the goods when entering your country. 

    If you need to clarify any details regarding local taxes for your location, please contact us before placing an order. For clarification, goods shipped to the EU can be dispatched from our EU location if ordered on this site, and we also have a UK shipping center if you order at www.mwcwatches.co.uk

    In the United States, orders under $800 do not incur taxes or fees. In Australia, orders up to AU$1000 are tax-free. Many other countries have similar regulations, which you can verify using this helpful link: Zonos De Minimis Values and also another link below to calculate taxes for shipments to most countries which is here https://www.simplyduty.com/import-calculator/

    It is the responsibility of the purchaser to understand that charges may apply and pay all subsequent import tax and duty on goods shipped to their respective Country. In the instance that items are returned to MWC as a result of a rejected payment, subsequent charges incurred such as Import Duty and processing costs will be deducted from any refund issued. For further information on this please contact accounts@mwc-distribution.com 

    We do not accept any liability for goods that have been lost after delivery to a PO Box. We reserve the right to cancel orders where the delivery address is a PO Box. Furthermore, we also do not accept any liability for goods that have been lost after they are confirmed as delivered to APO or BFPO locations. 

    It is the Customer's responsibility to notify us if the goods have not been received within 21 days of the estimated delivery date or time of ordering. If no notification is made within this time period the buyer shall be deemed to have received the goods.

    Failed delivery of an item ordered due to non-acceptance of the delivery

    Please note that if you order an item and the delivery company inform us that the item was refused it would be returned back to us, in many cases especially with FedEx, UPS etc they will also charge a return fee to send it back. Because in these circumstances we have done everything that is required to get the item to you we would refund less both the outbound and Inbound shipping charges once the item was received back at our packing and shipping centre. Unfortunately sometimes if you are having the order delivered to a business location the people receiving inbound parcels are prone to refuse an item without checking with the individual concerned we would strongly recommend being very cautious in this situation and notifying the people who handle the incoming parcels that you are expecting a delivery to avoid this problem occurring. Usually, we would be notified there is a delivery issue and would email you for your instructions, normally these sorts of problems can be avoided if you contact the carrier and tell them there is an error but it's very important to act quickly to avoid the return and associated costs.