Please identify this model

Your watch does not need restoration.  IMO, the case and dial should remain as they are.  The movement will most likely need to be cleaned and oiled, which I recommend if you intend wearing it and use it to measure time.  Assuming that all parts are in working order, any good watchmaker should be able to do that.
IWC's Certicate of Authenticity would be much too expensive for that watch, probably 1/5 of its market value.  Just my $.02.

Yes, i´m planning to wear it! 
I´m not planning to sell it, but i would like to increase its value. 
It just feels right if its fixed in the most proper way even when you´re not planning to sell it at all. 

But thats the thing, what is 5/5 (full market price)? 
If its high enough i might consider to do it the official way. 

Kind regards, 

Karel de Vries

Hello there,

I received this model from my father and would love to know more about it.
Any information regarding date manufactured, value etc will be greatly appreciated.
Serial number is 872078.

Thank you so much!
Daniel Rabinovitch

Hi Dan
The movement is IWC Cal 73 dating from 1928. 
Sadly this is a pocket watch movement that has been recased as a wristwatch and is known as a marriage. 

This hurts the value severely. 

Hi again,
Since IWC increased the cost of the CoA five fold, IMHO the CoA is only cost effective and essential, for watches that are frequently faked, i.e., the vintage Ingenieur, the Mark 11, etc.  The CoA will not increase the value of your watch, IMO.  Some may not agree, which is their right.
I usually stay away from valuations of vintage watches but I will tell you that IWC's CoA sets you down about CHF 300.  You do the math.

Hi,

can anybody help my with identifying this watch. Case number 3353807.
Please see also some attached pics.

Best regards

Syamak

Hi there, 

Thanks again for the information! 
I think a good watchmaker might be enough. 

Kind regards, 

Karel de Vries

Hi vintage IWC enthusiasts,
on the Calibre 70 i remember a post that was issued in 2003. You will find it under the following link in the archive.
www.iwc.com/forum/en/discussion/4214/

there is another one issued by WATCH77  -- best regards to Ralph
www.iwc.com/forum/en/discussion/4214/

Cromagnonman

Hi Cromagnonman, 

interesting link!

I asked IWC Concierge Services for more information and this is what they told me about the cal 70. (very interesting!)

"we are pleased to provide you with a little bit of the History that our Experts in the Heritage Department have found about the Calibre 70: 

"The movement was developed by the design team around Albert Pellaton. IWC constructed a valid movement at only a cost of 75% of what the Cal. 89 cost, namely the so-called "Economique - Kaliber 70".The movement had a small second at six o'clock, a rate of 18,000 beats per hour (2.5 Hz). The workpieces were identical to those of cal. 88, except that they had a flat spiral.
From the model, (Cal.70-12'"H3,8), which IWC produced only in the years 1945-1946, almost 4,800 movements had been manufactured.That with a little second equipped manual wind movement was the first men's wristwatch with flat spiral at IWC.During the phase of research and development, however, different limits, such as restrictive pricing and import regulations, had been imposed to IWC. In order to protect the Swiss Watch Association, new price limits and import regulations had been established. Thus, IWC had stopped the production of the Calibre 70 immediately, as its price and production costs were below the new imposed standards.[i]The cal. 70 is only a marginalia of the company's history from IWC, but it clearly shows that under Albert Pellaton the construction of watch movements was taken to keep the cost structure of the movement low.

The innovative idea, due to the socio-economic conditions immediately after World War II and the will to develop, a solid, high quality clockwork were undermined by external factors. This is a very good example of the influence of structural conditions and the latent certainty that an innovative project is brought to failure."
 [/i]
The above is a translation from an original document in German."

Fascinating Karel
Thank You for posting. 

Yes, great piece of information, thak you Karel.

Thanks Wolfgang for bringing up this old thread. 
I hope IWC will ressusciate the search function soon, so we can have easy access to the wealth of information contained in this forum. 

Hi everybody. I am a newbie to IWC so please treat me gently. I came across this through sheer luck at a boot sale in Cambridge. The serial number identifies it as a 12.5 Ligne Savonette cal 64 from 1901. The movement works fine and I would like to restore it. Has anybody got any pointers as to which direction I should take and likely scources for parts? Any help would be appreciated. The eagle-eyed will have spotted the lack of a seconds-hand pinion in the sub-second hole. What I would like to locate in the first place is a F/H No 224 or IWC no 6455 Fourthwheel and pinion. Not much to ask, it is only 117 years old.
PS Not at all confusingly the same parts, in the English/American and the French/German pages in the parts lists on this very site, have different FH numbers - 220 French, 224 English -  for the fourth wheel and pinion, no 6455.

Done a bit of digging and that...
forums.watchuseek.com/f11/iwc-s-co-27-8mm-peerless-lever-set-movement-help-needed-4657985.html

This is the current state-of-play if anybody is interested.