Important Collectors Wristwatches, P...
Geneva, Hotel Des Bergues, Oct 20, 1991
Quartier, au Locle, No. 320.
Full plate movement with single wheel frictional rest escapement of Sully type, in a form also used by Paul Garnier for carriage docks, circa 1830. With dial. 111. Chamb. p.124. O.T.L.