Help me find the value of a wristwatch?

Yesterday at a charity silent auction, I bought a box lot for $4 which included a mens wristwatch with the name brand OMAX. It has mechanical movement (the back side is visible so you can see the spring movement and gears working). It is automatic (there is a mechanism which winds the watch with wrist movement). Back to the front, in the 12 o'clock position is a smaller hour and minute hand. In the 37 second (little past 7 o'clock) position is a 30 second totalizer with about a 160 degree sweep which runs counterclockwise then resets, the action jumps to a second 30 second smaller totalizer in the 23 second (a little before 5'o clock on the main dial). In the 6 o'clock position are tiny words "swiss made". The body is large and heavy (like a Rolex). The wristband is medium brown, possibly alligator. Words on the back say " KC003 ALL STAINLESS STEEL 3ATM WATER RESISTANT". intricate etching on winding weight suggests to me that this isn't counterfeit. What do similar watches cost?