Part-time diploma recognition in Japan

Hello!
Universities in my country offer two types of courses: part time and full time. Both have the same program, but full time studies are free and when studying part time, you have classes only on weekends. The diploma you receive upon graduation states the type.
Bachelor courses last 3 years, and Master's degree takes another 2.
In the future, I plan on moving to Japan (I speak and read Japanese). This year I'm starting university in my home country, and I need to choose between two options:
1. Part time studies + full time job in the related field
2. Full time studies and no job
If I chose the first option, I'd have a few years of work experience along with my diploma, but I'm not sure what a potential employer would think of it.
I'd be very grateful for some advice!

A degree is a degree. Immigration isn't going to care that it took you 6 years instead of 3 to get it.