Case: Two-body, solid, polished and brushed, screwed-down case back with embossed Constellation logo. Dial: silver with applied gold baton indexes, outer minutes/seconds divisions, signature and an applied gold star above the 6, aperture for the date. Blackened steel baton hands. Movement: Cal. 564, copper-colored, 24 jewels, straightline lever escapement, monometallic balance adjusted to temperatures and 5 positions, shock absorber, self-compensating flat balance spring, swan-neck micrometer regulator.Dial, case and movement signed.Diam:35 mm Thickness 11 mmDial, case and movement in quite good condition.