How do I wind an automatic watch?

An automatic watch winds itself through the natural motion of your wrist during daily wear. If the watch has stopped entirely, give the crown a few manual turns to jump-start the movement before putting it on.

Are these vintage watches waterproof?

Vintage watches lack modern rubber gaskets and modern waterproof engineering standards. Avoid submerging them in water or wearing them while swimming to protect the internal movement from moisture damage.

What is a bumper movement?

A bumper movement is an early self-winding mechanism where an internal weight swings through a limited arc and hits springs. You can feel a subtle thud on your wrist as the weight moves back and forth.

How do I read a watch calibre number?

The calibre number identifies the specific mechanical movement ticking inside the watch case. You usually find this number engraved directly onto the metal bridge of the movement itself.