Grivolas 400 Day Crystal Regulator. 3.5 in. porcelain dial has black Roman hour numerals, open moon hands, brass bezel dial signed with Grivolas Co. trade mark and Pendule 400 Jours. Round French brass spring driven 400 day time only movement with hanging gilt brass torsion pendulum; movement signed and numbered No. A.10-2452-5, Pendule 400 Jours, G.C. Paris trademark and Fabrication Francaise, Trous D’Axes Comprimes. The case has a green marble serpentine crest with brass mounts and base with figural winged putti on chariot with lions, beveled glass with brass trim and cut glass side columns on the front. In very good condition with no breaks, repairs or losses. 13.5 in. high x 8 in. wide x 5.5 in. deep.