Swiss made automatic gold necklace watch

this is a Sinclair ultra rare Swiss made lobster edition as it has a large golden lobster on a black onyx type of background on the back of the gold watch. This watch is currently not working but is in excellent physical condition as you can tell in the pictures this has value just as a parts watch but much more value fixed. these are almost impossible to find making it even more valuable than a standard Sinclair pocket watch . this is on a yellow gold thick chain.