How do I wind an automatic watch?

Automatic watches wind themselves through wrist movement while being worn throughout the day. Many vintage pieces also permit manual winding via the crown to jumpstart the movement after a period of rest.

What is a bumper movement?

A bumper movement is an early self-winding design where the internal weighted rotor swings back and forth within an arc rather than spinning in a complete circle. Wearers feel a gentle tap against the internal springs as the rotor reaches the end of its travel.

Are these watches water resistant?

Vintage timepieces generally lack modern rubber gaskets and modern sealing techniques, making them vulnerable to moisture. Owners should keep these pieces away from water, rain, and humidity to protect the internal mechanics and dial.

How do I read a dial reference?

Manufacturers stamp specific reference numbers inside the case back and sometimes on the movement to denote the exact model and production batch. Comparing these numbers with archival records reveals the original production year and configuration.