The 200 T.GRAPH Chronograph was produced during Doxa's Synchron days. They are very rare and as far as I know only 2 versions were made; a silver Searambler, ablack Sharkhunter and the orange dial Professional seen here. Jacques Cousteau wore one and the watch seen here belonged to Gene Cernan, who also just happens to be the last man to walk on the moon (Apollo 17 - December 1972). The watch was owned by David Harwell. David and Michael Fall sent the photos below. One thing to note is the marking <25 MC at the bottom of the dial. The T in T.GRAPH denotes Tritium as the luminous material. It is radioactive. The "activity" used in watchmaking is limited to a value of 25 mCi (milliCurie) which means that no radiation will pass through the glass and / or the case of the watch. < 25 MC means that the activity of the luminescent material used on the T.GRAPH is below the legal limit of 25 mCi.

I have also included a copy of the 200 T.GRAPH from the US Divers advert in the MISCELLANEOUS section. This watch is slightly different to David's in the size of the sweep hand. Notice that neither watches have the usual square 'blob' on the end of the sweep hand.

It seems there were 2 versions of the 200 T.Graph Searambler made. One is similar to the orange 200 T.Graph, the other has a slightly different dial. There seems to be very little information on either of these watches and it is unknown which design came first, however, it is believed that only about 50 were produced.

I have done another page on the 200 T.Graph using new photos. One is a comparison with it and an orange Poljot Chronograph. the other is with new photos supplied by David Harwell. It can be found here.


At the time of writiong, Doxa have announced a new T.Graph model. It is still in prototype form but I have made a page with the first photos which I'll update as new information becomes avaiable.


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A Flying Doctor Production
Dr. Peter McClean Millar