Name: IWC Mk 11
Brand: VAT FREE
SKU: VW80
Price: 6500.0 GBP
Availability: OutOfStock

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This is a rare and desirable International Watch Company Mark 11 navigator’s wrist watch, to quote the original Ministry of Defence specification, “The wrist watch Mk. 11 is a highly accurate time piece suitable for astro-navigation purposes”. This watch was used by the navigator in an RAF plane in conjunction with a bubble-sextant to calculate the exact latitude and longitude of the aircraft. This method was in principal the same as that used by sailors to calculate their position ever since the development of the marine chronometer by John Harrison in the mid eighteenth century.

The Mark 11 is probably the most iconic British Military watch there is, it was produced in relatively small numbers and only ever supplied by two firms: International Watch Company and Jaeger Le-Coultre. The watch was designed to withstand the harsh environment of a military airplane - it was constructed in such a way as to shield the mechanism from the strong magnetic fields which were present: the dial is made of iron and considerably thicker than that found on a regular watch, an iron dust cover wraps around the back of the movement and joins with the dial to completely enclose the movement and so prevent the influence of magnetism on the time keeping.

The Mk 11 watches were considered such valuable military property that the case and dial and even the movement itself was marked with the military pheon. The watches were subject to an exacting maintenance schedule, indeed initially they were returned to the manufacturer annually for service and for testing to to ensure they conformed to the original time keeping specification. No other military watch was ever subjected to such a rigorous testing and maintenance schedule.

There is an excellent article about the Mark 11 watches which gives fascinating context and insight into them here

This watch is a particularly rare example because it retains the original dial, the so-called “white 12”. Over the service lifetime of the Mk 11 watches, the Ministry of Defence made a number of revisions to the design, some of these were minor (e.g. changing the specification for the sealing gasket on the caseback), while others were more major - such as a change of dial and hands. In 1952 the MOD revised the specification for the dial in response to concerns about legibility. At the next service interval therefore the dials were replaced on all the watches. How this particular watch escaped this fate is a source of wonder - there are believed to be only a handful in this original state.

The movement has been fully serviced and the timekeeping is excellent, the watch has a hacking function - that is the seconds are stopped while the time is being set, so it can be set to the exact second. The case has been cleaned, but as with all out vintage watches we have left it unpolished, so do be aware that the case bears the usual marks of wear. The crystal has been replaced and the watch has been fitted with a vintage one-piece leather strap which complements the watch wonderfully. The watch comes with our standard 12 month guarantee.

One of the things that makes the Mk 11 so special is the combination of exacting, chronometer-grade performance and a pure, minimal design of the visible parts of the watch. To my mind they are the very essence of horological understatement.

Specifications:
Case diameter: 36mm
Case material: stainless steel
Strap width: 18.5mm
time keeping: grade A

Order processing

We aim to dispatch all orders within 2-3 working days.

When your order is dispatched, your tracking details will be updated.

If you have opted for a custom engraving please allow an additional 1-2 working days.

If you are purchasing during a sale or a limited edition release, you can expect an email update with an estimated dispatch date if there any changes to the timeframe.

If you are in a hurry for your order, please email us. We'll try our best to prioritise your order.

Shipping guide for watches

UK: FREE DPD shipping, 1-2 working days
United States & Canada: FREE DHL shipping, 1-3 working days
The EU: FREE DHL shipping, 2-4 working days. To order to The EU, please visit our Euro website here (duties and taxes are included in the price of your watch).

Click here to see the full shipping guide for watches

Shipping guide for t-shirts

Our t-shirts are printed by us and shipped from our workshop in London. This means if you place an order for both a watch and t-shirt(s), they will be shipped together via an express service. Delivery times for these can be found here.

If you order a t-shirt without a watch, it will be shipped via a Royal Mail tracked service which usually takes a little longer. You can see an estimated timescale when you input your address at the checkout.

Shipping guide for watch straps

If purchased separately from your watch, watch straps will be shipped with Royal Mail 1st Class / International tracked shipping.

This takes 2-14 working days depending on location. You can see a more accurate timescale when you input your address at the checkout.

These delivery times are a guide based on the carriers terms of service, products may, in some unusual cases take longer to arrive. If this happens, please get in touch.

Return your watch for an exchange

We are happy to exchange unworn watches.

Fastening the watch will cause damage to the leather. If this is the case, we charge for the watch strap (or we can put the worn strap on the exchanged watch for free).

Please email us directly if you think your watch is faulty.

Return your watch for a refund

To return for a full refund, you have 30 days if purchased online. After this time we can offer an exchange if your watch hasn’t been worn.

If you purchased your watch in-store, we can offer an exchange or store credit only. This is because you’ve seen the watch in person and had the opportunity to try it on. Please let us know if you’re purchasing as a gift.

T-shirt returns and Exchanges

We recommend checking the measurements of our t-shirts on our size guide before placing your order, you can also check them here

However, if your t-shirt is faulty, we can offer an exchange or a refund. In this circumstance, please email us within 30 days of placing your order, with a photograph of the problem, as well as your order number.

To return other products (such as straps) please email us: info@mrjoneswatches.com to arrange this.

UK returns

1) Generate your free returns label here.

2) Print it off and stick it to your original packaging.

3) Take it to your local post office. Find your closest here.

(If you no longer have your original packaging, please ensure your watch is securely wrapped in bubble wrap / something similar to protect it in transit).

NB please include a short note describing the issue with the watch and your contact details.

EU and International returns

Please send the watch to this address:

Mr Jones Watches (repairs)
61 Dartmouth Road
London SE23 3HN
United Kingdom

Ensure the watch is securely wrapped in bubble wrap to protect it in transit.

Please include a note stating:

- the reason for the return
- a detailed description of the problem with your watch (if sending for repair)
- your email address and your order number
- remember to include your return delivery address, (so we know where to send the repaired watch)

We recommend you use a tracked service.

As the UK is no longer in the EU, you will have to fill in a Customs Declaration form (usually a CN22).

Please write in the description field "wristwatch, return for factory repair / refund , no commercial value."

This is essential otherwise an import duty will be levied which you will be liable for (there is no way for us to reclaim this charge).

Please note: we do not cover shipping costs for unwanted items, returned from outside of the UK. If you are returning a watch that is faulty we may be able to reimburse shipping costs if your watch is within warranty, please contact us ahead of sending in this instance.

IWC Mk 11