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1950 IWC Schaffhausen Caliber 88 YG

Free Worldwide Insured Shipping with FedEx / Authenticity Guaranteed / 14-days Inspection Period / 1-year Warranty

Extremely attractive classics by IWC offering an unbeatable combination of a solid yellow gold "calatrava" shaped case and a gorgeous silver dial. Besides its' charm, this particular timepiece is notable for the caliber used - cal.88 which is among rarest calibers used in IWC dress watches. The size of the case makes it even more special. It measures 35 mm without crown while most cal.88 pieces are usually not bigger than 33 mm. Needless to say that it feels and looks amazing on the wrist.

The watch went through complete service in December 2017. Technical warranty: 1 year.


  • 18k solid yellow gold 3-body case with snap-on case back. High-polished finishing.
  • Professionally polished to perfection. Showing strong geometry and crisp gold hallmarks.
  • 35 mm (without crown) / 43 mm (lug-to-lug) / 18 mm (between lugs)
  • Original yellow gold fluted crown.
  • Original plexiglass crystal
  • Serial number: 1227843


    • Manual-winding with small second hand
    • Robust, precise and collectible Caliber 88, signed "International Watch Co Swiss"
    • Côtes de Genève, polished screws, Breguet spring, 16 jewels, 18000 A/h.
    • Serial number: 1154942
    • Fine condition. Professionally serviced in December 2017.


    • Untouched silver-white original dial in excellent condition, showing light aging on the outer perimeter at 2 o'clock. and homogenous aging. 
    • Signed "International Watch Co Schaffhausen" at 12 o’clock. 
    • Original "sword" golden hands, golden small seconds hand in perfect condition.

    Delivery set:

    • The watch comes with our handmade tan calfskin strap with generic gold-plated buckle.
    • Our company’s warranty certificate, invoice and general terms and conditions.

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    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.