What does seventeen jewels mean?

Seventeen jewels indicates the minimum number of synthetic ruby bearings required to fully jewel a standard manual-wind mechanical watch movement. These jewels minimise friction on the pivots of the gear train, extending the lifespan and improving the timekeeping accuracy of the movement.

How do I wind my watch?

Turn the crown clockwise between your thumb and forefinger until you feel gentle resistance, stopping immediately to avoid overwinding. Most vintage manual-wind watches require daily winding to maintain a full power reserve and keep accurate time.

Are these watches waterproof?

Most vintage pieces from this era lack modern rubber gaskets and screw-down crowns, meaning they offer minimal resistance to moisture. Exposing these watches to water, rain, or humidity can cause condensation inside the crystal and rust the internal steel components.

How do I date my watch?

Dating relies on comparing the case style, dial typography, and movement serial numbers against known manufacturer production ledgers. Design markers such as square Art Deco cases point to the 1930s, whilst minimalist round dials often signal the 1950s or 1960s.