cal. 39-41 nickel lever automatic winding movement 44 jewels 21k gold rotor segment • silver dial with applied steel baton indexes apertures for the big date and the moon phases at 10 outer minute/second divisions luminous baton hands • polished and brushed round case sapphire glass transparent case back secured by 5 screws • dial case and movement signed • with a stainless steel Glashütte Original buckle.