TAG Heuer Automatic Dive Style 844/5 "Monnin" Circa 1990sThis Watch This model was one of the first released under the TAG Heuer name in 1985, just after TAG acquired Heuer. It is essentially a Heuer 844 with an updated logo. This was the last of the famous 844 automatic series of models, and therefore, the only TAG Heuer signed version. It was classed as being in the 1000 series, a numbering system that TAG Heuer inherited from Heuer. TAG Heuer continued to use this system, with the 1500, 2000 etc series.