Hi I wonder if anyone can offer any information about this in terms of rarity, value is it collectable etc. My uncle has had it tucked away for about, he thinks 30+ years having never worn it. He recalls having the strap swapped because the original (now missing) wasn't big enough but still never used it as he thought the face was too small. At the very least I've said he needs to take it and have the battery removed or replaced, if it isn't to late already! Thanks