C. Three-body, solid, polished and brushed, flat bezel, curved lugs, snap-on case back. D. Two-tone, brushed yellow with applied yellow gold faceted indexes and Arabic quarters on a guilloche circle, outer minute indexes. Yellow gold baton hands. M. P454/58, rhodium plated, fausses cotes decoration, 17 jewels, straight line lever escapement, self-compensating flat balance spring, adjusted to temperatures, swan-neck micrometric regulator. Dial, case and movement signed. Dim. 34 mm. Thickness 10 mm.