Almost every Friday afternoon I found something extra-ordinary from one secondhand shop in MongKok Hong Kong. Taking the afternoon off (again) I discovered yet another Heuer Silverstone that housed a Lemania 5100 movement, the model 510.403, from 1983. Knowing the owner of the shop is handy and quickly came to a reasonable offer. I have read all the related articles in Calibre 11 about this so called "Poor Man's" Silverstone. I already bought the 110.313F from Antiquorum auction and confirmed it has a Calibre 12 within, and my 1133B has the Calibre 11. One of the paragraph in the article mentioned about the authenticity of this piece and I just wondered if Calibre11.com can verified if I do have one that's 100% true. The only missing part was the stamping of the model - 510.403 on the case back as mentioned in the article. The strap wasn't the original (came from Omega) but it was fitted with the original Heuer buckle.