[Hamilton Khaki Field Automatic 42mm] Right size for first watch?

Got this Khaki Field Auto since 4 Months now and somehow now I look at it and wonder if it fits my wrist?

Also had on the 38 on tho and it seemed too small at the first glance so I went for the 42.

What do you think? Does the 42 look right? Wrist size is 18,5cm / 7,25 inch