The SRPG27 is the best choice. You can dress it up and down and still doesn't get out of style. Plus, the everyday legibility is key to me. I chose between these two, and I let the instinct choosing it and I went ahead with the field watch. I am also an aviation geek, and the SRPG27 does combine some aviation watch elements with a field watch, which made sense to me. Still enjoying it after 6 months. Cheers!