anon438
429
V&C 1933 ref 3388
"The Hour Lounge, Alex Ghotbi, 2. August 2012, ...
1933 – Photo reference 3388, Vacheron Constantin’s first water resistant wrist watch (thanks to its screwed on case back and bezel) and certainly a piece which inspired directly the Overseas. Housing a 12’’ caliber this watch was made in a unique yellow gold piece. ..."
(not a steel case?)
Longines sold them as Logines Hermétique, Acier inoxydable (steel), no 2283.
Recogniseable differences.