Anyone have info for the replacement band for this ironman watch?

Yes, just call the 800 number for Timex support, provide the watch model number and you can order the replacement band for $10+. For some reason, you can only order a max of two. It must be shipped from China, or slow processing, as it will take about 4 weeks for delivery. The watch is great, but as other reviewers have noted, the strap or the slip bar that holds the end of the strap will break. It may be because we are using the watch in rough environment. I first just brought another watch, but when the second watch strap broke, I order the replacement band from Timex. Fits perfect. Now I have two watch with good straps. LOL. Had one watch now over 4 years, and the second watch over two years, and so far have not had to replace the battery. I will spend a couple of dollars to have some replacement pins handy. I notice the pins were starting to look worn from the salt water and other crud from wearing it in the rough environment. I ordered the straps at the beginning of Feb, and just replaced the straps this past weekend, when the straps arrived.

43mm case diameter is oversized? or is 55-60mm?

The face of the watch is indeed 43mm. We do not offer this Timex watch on a bigger case diameter.

Does this watch have military time?

The watch can be set to military or standard time. This can be done under the same settings as when you adjust the hour to change the clocks each spring and fall.