Preparation is the key to doing a good job.

As this guide is for people who have a little experience, you should have opened a few watches before so I shouldn't need to explain. This section is all about dirt.

You should clean all dirt from around the back of the watch before opening it. I was taught to clean after I'd changed the battery but by then the damage is already done. In many of the watches that return because they aren't working right I'd find "specks of dirt" all through the watch which came from the cleaning process, so now I clean all the dirt I can from the watch before the sealing of the watch is compromised.

  1. Open the watch strap or bracelet so it is flat
  2. Break away all chunks of dirt with the tweezers
  3. Clean the watch back with a Brush. I use a stiff bristled paint brush whose bristles I've trimmed to about 1cm
  4. When it looks clean, blow with the blower (never your mouth) all microscopic dust away
  5. If it is a screw back, I unscrew the back 1/8 of a turn and repeat steps 3 and 4
  6. Move your watch to the clean area

now you may change the battery