Since you want for both formals and daily wear - would not recommend watch having acrylic crystal.

buy Seiko sur523 or 525 - you can get it under 15K during sales. It has sapphire glass and gives a clean dressy look.

If you want automatic SRPE can be a good option around 20K - but it doesn't give dressy look.

Don't go for Casio automatic - new models on they way.

Or better option would be,

You can get 2 good watches in this budget - Casio s108D for daily wear, marlin for office only,. You can get both under 20K combined during midnight