Measures 22mm in diameter. 

Silver Metal Flexable Expanding Strap.

Winds and second hand moves, but occasionally will stop and then start again.

Crystal is intact but has 3 minor vertical scratches down the center.

No chips.

Marked on face," Rouen Antimagnetic Water Repellent Unbreakable Mainspring Swiss Made"

On the back, " Case And Timed By Precision Watchcraftsmen" and "Base mMetal Non-Magnetic Anti-Shick Water Repellent Stainless steel Back" and "119920" with 4 Stars.

In very nice clean condition.