Your just wrong because I carry a G42 which is hardly watch-fob size and it has excellent TruGlo sites and I shoot it much better than I do my PM9 with much faster follow up shots with the G42.Hence use the largest most powerful caliber you can control and conceal.
And watchfob size .380s are hard to shoot well. Small grips, small sights, poor triggers, and weak cartridge.
Deaf
The whole idea of this thread was "is 380 marginal", not whether there are more powerful choices, or what you carry! Who cares what you carry. The 380 works better for me than my much harder recoiling PM9 and is much easier on my old joints, so I don't really care about what others carry just whether or not the 380 can get the job done?