Tavannes Clamshell Tank Two-Tone Dial
A very fine example of the clamshell tank from Tavannes, with a two-tone dial.
Case: Stainless steel, clamshell waterproof
Dial: Two-tone with mirror track, radium Arabic numerals
Hands: Radium pencil
Movement: Manually wound. signed Tavannes
Size: 23 x 38 mm