MG,
I can't speak for your Asian mvmt 1655 model but I've used both a gen and Clarks Tropic116 on the various models of 1655 I've had over the years and the date mag lined up fine. The main issue was the how tall the crystal sat above the dial -which of course impacts the mag size.
See my franken 1655 below, the date is a tad large.
It might be some trial an error for you, I'd suggest starting with a Clarks T116, only a $5 investment.
Good luck on the project!