still looks great eventho i've seen it thousand times.
regarding am pm, yes it have. to make it easier, you can just keep moving the minutes hand until u see the date move to the next date - thats ur 12am
its much easier to adjust that way, including during 30/31 days adjustment

for the strap, you may look for Perlon strap type, more sturdy to support the weight and comfortable~

enjoy ur watch
i keep it on the bedside and enjoy the lume before sleep

iirc, the 4r15 movement will have 1-2 hours date delay during change of date 12am.
as long it change between 11pm - 1am, i guess u set it correctly.

i still remember 7s26 movement date change from 11pm - 2am fully change to next date

im not sure if its myth or depends on the watch compatibility, most people wont recommend to change date between 10pm - 4am to prevent the gear changing the date from damage/less accurate.
depends on the watch tolerance, movement etc - changing the date during this period may affect date changeover accuracy. anyhow if you want to service the watch - you may refer to previous thread, the name pop's up many time but i cant recall his name

perhaps other's can help you on the looking for contact person to service your watch. or if your watch still under warranty, just claim for new watch

iirc automatic watch have escape mechanism so it will not be overwind, but manual wind watch have its limits which u will feel its stiff and cannot wind anymore