G-Shock Perfect Search (GPS), I would still have known that there were also two basic analog Mudman versions.
The original owner of this watch bought it on March 31, 1999 at a Yodobashi store in Japan. Unfortunately I can't figure out which store it was.Anicar showed her newest acquiry. It was a Gaussman, but she called it a Mudman. I think in Japan this mistake can be made easily. The Gaussman look exactly the same as the analog Mudman. It is not strange when you see that the model number. AW-570 is both used for this model as for the Gaussman (MIY, MIS), although AW-571 was usually used as the (base-)model number for the Gaussman. The difference between the analog Mudman and the Gaussman is just cosmetic. Only the name differs on the basic models and on the special editions the Mudman version has a mining mole, while the limited editions of the Gaussman have a electrified mole with a magnet. I like to dedicate this article to my blog friend Anicar.
The backlight of this Mudman was not working, so I had to replace the batteries. This Mudman, has the same module as the Gaussman, module #1700. It takes two Silver Oxide batteries instead of the usual Lithium batteries. The batteries required for the battery change are a SR626W and a SW927W. The following photo's were made during the battery change.
This is the back protector of the module. The back side is the rubber shock absorber, on the other side it is made of metal. Pretty unusual.
The 399 battery is the same battery as the SR927W, 376 and 377 are the same batteries as the SR626W. I have no idea why 376 and 377 are the same battery. I prefer the SR notation of the battery, because it is the most common used notation.The battery types can also be found in the original 1700 manual. End of battery change photo's.