1906 rare early silver vintage International Watch Company (I.W.C.) watch

A very early silver wristwatch from the International Watch Company (I.W.C.). The silver case measures 31mm in diameter and is hallmarked 1906. The case has a double hinged back for a protective dust cover to the movement. The Swiss movement has 15 jewels and features pin-set hands. The white enamel dial has Roman numerals with a subsidiary seconds dial, and is signed IWC Schaffhausen.