Seth Thomas Helmsman
The Mini Ocean series is manufactured with massive cast brass cases. Polished and lacquered brass.
An exceptional feature of this series of instruments in the porthole style is the additional rubber O-ring sealing between case and bezel for perfect opening and closing.
White 3 inch dial with two scales, mm Hg and hPa (millibar).
Dimensions 4 1/4 x 2inch case.
Made in Denmark by Delite.