7347_IWC 65

IWC Caliber 65 – Vintage Manual-Winding Movement for Ladies’ Watches

The IWC Caliber 65 is a small, precise manual-winding mechanical movement produced by IWC Schaffhausen primarily during the 1940s and 1950s. It was designed specifically for ladies’ wristwatches, reflecting the brand’s dedication to crafting reliable and elegant movements for compact cases.


Key Specifications – Caliber 65

Specification Description
Movement Type Manual-winding mechanical
Diameter Approximately 16.5 mm
Thickness Around 3.3 mm
Frequency 18,000 vibrations per hour (2.5 Hz)
Power Reserve Approximately 38–42 hours
Jewels Typically 17
Functions Hours and minutes (some versions include small seconds)
Shock Protection Incabloc (in later versions)
Production Period Mid-1940s to 1950s

Design and Features

  • Compact and slim design tailored for small ladies’ watches.

  • High-quality finishing including perlage on plates, polished edges, and precise assembly.

  • Reliable and efficient manual winding mechanism.

  • Some versions feature a small seconds subdial, while others maintain a clean two-hand layout.


Typical Applications

  • Widely used in 18k gold and steel ladies’ wristwatches during the mid-20th century.

  • Often paired with elegant, thin cases designed for everyday wear or formal occasions.

  • Movement choice for models emphasizing simplicity and mechanical craftsmanship.


Collectibility and Servicing

  • The Caliber 65 is appreciated by collectors for its historical significance and quality.

  • Requires experienced watchmaker servicing due to the movement’s small size and delicate components.

  • Replacement parts may be sourced through vintage suppliers or donor movements.

  • Well-maintained examples continue to offer reliable timekeeping and charm.


Conclusion

The IWC Caliber 65 embodies the brand’s commitment to precision engineering and elegance in compact form. As a vintage manual-wind movement for ladies’ watches, it remains a sought-after caliber for collectors and enthusiasts interested in mid-century Swiss horology and fine mechanical craftsmanship in smaller wristwatches.

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