When I was looking for a Seamaster I decided to go for the "electric blue" because the shiny blue is so nice in the sun 馃槑 also the sword hands and the fat indexes glow very cool but I don't have the skills to make a decent picture of that 馃
Another blue dial watch that I can share is the De Ville Orbis from my mother, which also plays nice in the sun.
The rarest of my blue dialed watches. Never seen another. Lorenz Chrono Sub with Lemania 5100 movement, this one having a blue bezel and dial with silver sub registers.
My first "good" mechanical watch. SMP midsize purchased new in 2005. Now worn mainly on holidays. The striking blue wave dial was what first caught my eye.