I ordered both, but leaning 42
But it depends what you want to get out of the watch- if you want a more discrete watch, especially if it will be under a shirt most of the time- go 38
If you want something to stick out and intend reading a lot on the watch- then of course go 42
But it depends what you want to get out of the watch- if you want a more discrete watch, especially if it will be under a shirt most of the time- go 38
If you want something to stick out and intend reading a lot on the watch- then of course go 42