What's the band size for a cr2016 Timex indiglo? Also says wr 30 m.

SOURCE: Timex Indiglo WR 30M

NOTE: 12/24 HOUR TIME IS SELECTED BY PRESSING RESET/LIGHT ONLY WHEN THE HOURS MARKER IS 
FLASHING. THE “A” OR “P” WILL DISAPPEAR WHEN THE 
WATCH IS SET TO 24-HOUR TIME. 

SOURCE: timex expedition indiglo wr 50m

I had the same problem, and could not find any answers on timex.com. After you place the battery in and it begins to beep, push all four buttons in at the same time. This should "reset" the watch -- at least it did for me.

SOURCE: How to change battery for Timex Indiglo WR 30M

I second the vice advice...the only thing that worked was to put it in a vice and crank it one more crank then you think is possible. You will hear a little "pop" when it snaps into place. It was the only thing that worked!

SOURCE: Timex Indiglo WR 30M

to turn off hourly chime on the times wr 30m, simply press (in any mode, i just use the regular clock mode) the start/stop button (top right hand button) once (for about half a second).
  if you don't hear anything, you've turned off the hourly chime!  if you hear two short beeps, you've turned on the hourly chime.    turning the chime off/on is cyclic.  if you press once and hear nothing, it's off.  if you press again, you'll hear two beeps and the hourly chime is now on.    a lot of times that button hits my wrist (i wear it on my left hand) by accident, and that's how the chime turns on and off.  i hope this helps someone.

SOURCE: Expedition Indiglo Waterproof 50m

how do you change the battery on this