I am selling this Heuer Mareographe manual chronograph men's watch with reference number 2446C that was made in the 1960's. It has a 41mm (without the crown) stainless steel case, and is on a Hirsch leather strap with quick change that fits a 20cm wrist. The watch contains a Valjoux 721 chronograph movement with tide indicator (it advances using the pusher at 9 o'clock). The service history is unknown. The movement is running and keeping time, the chronograph complication starts and resets. The watch has been worn and I would estimate the overall cosmetic quality to be good although the gunmetal dial paint has decayed. The watch comes in a generic box. "The 2446c series was introduced in late 1968 when the earlier screw back case Autavias were phased out. It utilised a compressor "snap back" case which is larger than the earlier screw back case by 1mm, although it actually wears larger than that difference may suggest due to the depth of the case and width of the lugs. The yachting themed dial that was used for this special series was specific to this case, and so whilst the silver and blue dials used in the 2444/2446/2447 Mareographe and Seafarer versions are almost (but not quite) identical, the 2446c uses a bespoke and spectacular gun metal grey dial. Combined with contrasting white sub registers with flashes of "yachting" blue, it is exceptionally beautiful - undoubtedly one of the most beautiful produced for Heuer. The Mareographe, like the Seafarer was conceived to appeal to the man at sea, whether that be a fisherman, a yachtsman or just an all round adventurer. Not only did it allow the owner to tell the time and to time via a traditional chronograph, but it also had a regatta timer and the magical "tide disc". It was this tide disc which was the chronograph’s real point of differentiation and, once set, it effectively tells you the two high and low tides for each day on an ongoing basis. There were two distinct Mareographe, Seafarer and Solunagraph batches: the 1st execution which had plain steel hands and the one colour mk1 tide disc; and the 2nd execution pictured here with white bund style hands with mk2 tide disc which features two shades of blue." The watch will be offered without a reserve price and will be sent using signed delivery. Please examine the photo's before bidding.