Does anyone know anything about this vintage Smiths diver watch???? the movement is marked Agon-matic swiss made 17 jewels 1217-21,, strange as I thought Smiths was a british watchmaker??? the caseback is also marked agon watch corp swiss made,, is this a cheap mass produced watch??? or is it interesting???? appreciate your comments please sorry pics are not good quality,, watch is exellent condition just a few light sctratches on the glass.