#761A Croton Nivada Grenchen Aquamatic a hard to find watch ETA 2541

A vintage Croton Nivada Grenchen in good shape. There is a small scar on the face that runs through the end of the word 'Grenchen.' The movement is a 17 jeweled ETA 2451. If I were keeping it I'd spend the money to have it serviced as it needs it. But for the time being it runs when hand wound, I think there might be something off with the rotor but who's to say? 10KGF Bezel, SS backing.