1978 Watron Solar Cells
This Watron model has a heavy round stainless steel case with an oval face. There are buttons at the 2 o'clock and 8 o'clock postion and two inset setting buttons at 3 o'clock and 4 o'clock. The date is estimated by the design.
I have not been able to find out anything about the Watron line of watches except that they also made “Transformer” LCD watches (robot arms and legs unfolded like a Transformer robot) in the 1980’s.