LeCoultre: A 1930's gold-filled triple calendar with moonphase wristwatch, in rectangular case, bezel with five-minute divisions, off-white dial with outer date ring with central date hand, apertures for day and month, subsidiary seconds with sector for the moon, the snap-on back with makers mark and numbered 8136531, the signed lozenge shaped movement, jewelled to the centre with seventeen jewels, and numbered 646761