Hello, could anyone give me a check if the following watch is authentic and what price range they usually go for?    Sea-gull M177s   Here is the ebay description given: Offering rare and popular model M177S from Sea-Gull. Watch is with amazing silver dial, in stainless steel, and leather strap (after market).  They don't manufacture this model anymore and it's sold out everywhere. Very hard to find - COLLECTOR'S ITEM!!!!! Complications: Date, Automatic. Watch...