27-jewel Cal:137 automatic certified chronometer movement with 18ct white gold rotor No.202, engine turned dial with applied gilt radial Arabic numerals, inner luminous dots and 5 minute divisions, subsidiary dials for running seconds, 30 minute and 12 hour recording, date aperture between 4 and 5 o'clock, gold moon hands, outer tachymetre scale, brushed case with polished bezel held by 5 screws, glazed exhibition back held by 8 screws, twin pushers flanking the crown, fitted Ebel green leather strap with 18ct gold folding clasp, together with fitted wooden presentation box, outer card and papers, case, dial and movement signed 40mm.