Looks like Seagull currently has some nice sales on their popular 1963 line. The sale seems to include most of the line except the Green Edition for whatever reason. Fairly tough watch to come by and they hold their value, watch reviewers rave about them. All watches should include the exhibition back case but don't quote me.
Seagull 1963, 38mm, Acrylic - €239.00 - https://seagull1963.org/collections/seagull-watches-and-stra…
Seagull 1963 (Panda Dial Edition), 42mm, Mineral Glass - €265.00 - https://seagull1963.org/collections/seagull-watches-and-stra…
Seagull 1963 (Black Panda Dial Edition) 42mm, Mineral Glass - €265.00 - https://seagull1963.org/collections/seagull-watches-and-stra…
Unfortunately, there is Seagull, Sea-Gull, etc….. so look here as well https://www.aliexpress.com/store/5117082
Also look at https://www.youtube.com/watch?v=dFLqBdcbhkc which is 'Just One More Watch' where he looks at the different suppliers who sell homage versions of the real Seagull