That is the one.
The first prototype was flown on 23 October 1937. The first and second prototype had twin floats, while the third and fourth had a large central float and smaller outboard stabilizing floats. Official tests began in Travemünde in January 1938. The Fw 62 was a capable aircraft and well liked by the test pilots, but the competing Arado Ar 196 monoplane was both conceptually and structurally much more modern, and was chosen for production
You have control