This is a very handy and portable tool kit for dealing with popular large watches with screw-off backs. It features tools for opening the back, replacing batteries and replacing bands. It comes in a zippered pouch that measures only 8" x 4-1/2" x 1-3/4" when closed.
Tools in the pouch includes:
Large size economy 3 prong watch case wrench with 4 sets of pins
Large size economy watch case holder with 4 adjustable, non-marring pins,
A watchmaker's eye loupe for inspection,
A 1.5mm standard screwdriver stainless steel,
non-magnetic #5 tweezers,
A spring bar tool.