This style is like the Eastern shirt continuously sold by 45rpm.
This is made by North Marine Drive, which is part of 45rpm.
Soft chambray fabric, french seams.
White snaps up the front, except for one pink snap, the second one from the top.
The shirt cuffs have three snaps, with an extra snap in the 'vent' above it.
There is multi-colored zigzag style stitching in a line on the placket between the third and fourth snap in front.
Made in Japan.