Lange & Söhne. A silver openface keyless deckwatch with power reserve indication
Signed A. Lange & Söhne, Glashtte, i.Sa., no. 202172, 1940s
The frosted gilt movement jewelled to the centre with bimetallic balance, micrometer regulation, flat blued steel hairspring with endcurves, the brushed silvered dial with Arabic numerals, two large subsidiary dials for running seconds and 30 hour power reserve indication, blued steel spade hands, in plain openface silver case engraved with the German Imperial eagle and the Germany Navy no. M9723, with hinged cuvette and maker's certificate confirming the date of manufacture as 1943 and extract from the despatch book, case and movement signed and numbered
59 mm. diam.