I have this nice vintage working Seiko from March, 1980. I know, because I bought it new. It is super thin and while there's not much wrong with the crystal that is on it now (minimal ding or two), I want to replace it with a sapphire crystal and then I intend to sell it (too many watches). Can anyone tell me what size crystal I need to get?
The model number: 0620-0209 - Serial #034827
I have measured as closely as I can at 28.14mm (I guess that's 28mm), but I don't know the thickness. It sticks up from the bezel so slightly I can't even measure how high, but it allowed me to get the approximate width. I don't want to remove it before I have a replacement on hand, in case I break it and can't find one. Seiko's World Time Decoder recognizes the watch, agrees with the age and gives me a crystal part #280N27KN00, tells me to go to Jules Borel watch parts to buy one ($14.50) but it does not tell me what size it is.
Does anyone know how I can find this out? I can buy sapphire crystals for 99 cents in most any size, so I don't want to pay $14.50 + shipping. I'm assuming it's 28mm, but how thick could it be? The watch is only 6.3mm thick and if anyone wants to know, the watch is 32.5mm and is a gent's watch. I remember them being particularly small back then (compared to today), plus I have a small wrist. Nice looking watch with tapestry dial. Get this, it has no second hand! When was the last time you saw a watch with no second hand (made that way)? Am I talking myself into keeping it? Thanks folks!