Check out our new venture -

1942 IWC Schaffhausen "Hermet" ArtDeco Dial

Free Worldwide Insured Courier Shipping / 14-days Inspection Period / 1-year Warranty

Payment via bank transfer is subject to a 5% discount! Contact us for details.

Delivery: ca.10 days

Extremely rare and collectible timepiece - International Watch Co "Hermet". This type of case was produced by IWC in quite limited amounts and featured special type of snap-on case back providing additional humidity- and dust-proof capabilities, that is why it was called "Hermet" derived from "Hermetique". Hermet cases existed in few sizes and this example is the biggest one measuring 37.5 mm without a crown. 

This particular watch is notable for an extremely rare dial - original and untouched creamy white dial with ArtDeco-ish numerals accompanied by a charming set of blue steel hands.

Professionally serviced in June 2018. Technical warranty: 1 year.


  • 2-piece stainless steel case with snap-on case back. Stain and high-polished finishing.
  • Possibly polished in the past, showing various traces of use. The case maintained pretty sharp edges and perfect geometry.
  • 37.5 mm (without crown) / 46 mm (lug-to-lug) / 20 mm (between lugs)
  • Original steel fluted crown. 
  • Service plexiglass crystal.


    • Manual-winding with small seconds hand
    • Robust, precise and collectible Caliber 83, signed "International Watch Co Swiss".
    • Côtes de Genève, polished screws, Breguet spring, 17 jewels, 18000 A/h.
    • Good condition showing certain traces of servicing in the past.
    • Professionally serviced in June 2018.


    • Untouched original creamy-white dial in good condition with moderate patina over the surface.
    • Signed "International Watch Co Schaffhausen" at 12 o’clock
    • Original blue steel hands

    Delivery set:

    • The watch with handmade VintageCaliber calfskin leather strap and generic steel buckle.
    • Our company’s warranty certificate, invoice and general terms and conditions.

    Related Items

    Sizing Product

    Measuring a watch

    It is always crucial to understand the size of the watch, especially when it comes to vintage watches which are generally considered as too small in comparison with what watch industry offers today. For example, the original Patek Philippe Calatrava introduced in the 1930s was only 31 mm in diameter, while today's classic Calatrava is 39 mm. When you think about 8 mm, it doesn't seem to be a big difference, but believe it is.

    In our condition reports we normally disclose three most important parameters as follows: diameter without crown / lug-to-lug length / lug width. 

    Diameter without crown

    It is, so far, the most important measurement to understand the size of a regular round-shaped watch.It helps you to understand proportions and overall look of the watch. It is important to consider width of the bezel and color of the dial, because certain combinations may make the watch look bigger, while some other smaller. It is all very individual, however there is common understanding:

    Lug-to-lug width

    This parameter will help you to understand whether the watch is comfortable for wearing. You should compare lug-to-lug width with the width of your wrist, and if lug-to-lug width is smaller or equal, then this watch shall be comfortable.

    Lug width

    This measurement is defining what size of strap you need for the particular watch. Depending on era and manufacturer you can find watches with lug width between 14 mm and 24 mm. Most common sizes are 18 mm and 20 mm.