Note: If you do not have the correct tools for doing this I suggest you stop right here. The screws on the Mudman are very small (little buggers) and without the correct screwdrivers you stand the chance of badly stripping the heads. Also, I take *no* responsibility for you doing this at home and ruining your watch.
Step 1: Getting Started
Once the straps have been removed it makes it a little easier to handle the main body of the watch.
Step 2: Removing the Caseback
Remove all four screws carefully and put them somewhere safe. The back cover will not come off yet, there are two even smaller screws on either side-edge of the case that need to be taken out.
Remove the two tiny screws that are on opposite sides of the case body. These can be found at the 3 o'clock and 9 o'clock positions. Keep these two screw separate from the others as they are a different size.
Once the final two screws have been removed you can start dismantling the case. The first thing to do is to remove the back case cover. This should already be loose and will lift right off.
Next, lift off the metal case back. Be sure to keep the watch body in the upside down position as shown otherwise the module could easily fall out. Sounds obvious but trust me.
You should now be able to see the full internal workings of the watch. The module is slightly hidden by a soft rubber protective cover - there is no need to remove this.
Step 3: Removing the Bezel and Inner Module
Once you get that first edge out the whole inner module should pop right out. Be very careful not to disturb the small spring sticking out of the back of the module at the top (11 o'clock position in the picture below).
Here is the shot that many Mudman owners, myself included, have been waiting to see. A "naked" Mudman! It's funny, during this entire process I began to really appreciate the quality and craftsmanship (albeit it fully automated) of this watch. No blemishes or flaws even on the pieces you would never normally see.
Step 4: Get the Water Boiling!
As I mentioned earlier, I am going to boil both pieces of the strap at the same time as I boil the outer bezel. I've got the water up to a rolling boil and I'm ready to take the plunge. In they go.
I've heard varying times provided for doing this, so I opted for somewhere in the middle - 20 minutes ought to be long enough to discern a difference. What better way to time this than with my atomic, solar Mudman!
While I'm waiting I go back to take a closer look at the "naked" Mudman. It looks pretty cool with its clothes off, but it's a little too vulnerable to be messing around with it. Interestingly I had it set to beep on the hourly intervals and one came and went while it was out of the case - there was no sound because that tiny little spring sticking out of the back of the module was not making contact with the metal case back.
Step 5: Reassembly and Testing
I'd say this was a great success. I had my doubts but it looks like this really works - I feel just like the Mythbusters. I will definitely being doing this for my atomic solar Muddy.
Well I hope you find this useful and somewhat entertaining. I enjoyed doing this and can attest that the difference is so noticeable that you won't regret taking the time to go through these steps.