The Longines Grand Prize automatic from 1967, stainless steel, conservative style with very plain dial features one of the most unique designs in automatic movements with a huge gear, the diameter of the movement, driving the winding mechanism. It looks quite impressive and the finish on the movement is of a very high standard (typical Longines) but the technology never progressed passed this model indicating that it possessed no advantage over conventional automatic systems.
This watch features a one-piece case, which is no case back. The movement is removed through the glass and there are only two leakage points for foreign matter; the glass and the crown.
It’s an ordinary looking watch but thanks to its pedigree, I’m pleased to have it