ORIGINAL SET OF THE TWO MODELS MADE FOR --BHI-- Flying Tourbillon ONE MINUTE Mechanical WRISTWATCH.. MADE FOR:  BRITISH HOROLOGICAL INSTITUTE. 41MM ACROSS. NICE HEFTY WATCH. SAPPHIRE CRYSTAL FRONT AND BACK. ONE MARKED 150 ONE MARKED 151.150 represent their Hundred a fifty years.
The following year they issued the 151 (151 years)  SALESMAN SAMPLES IN TRAVEL PADDED CASE RUNNING KEEPING TIME LOOKING GOOD.

It's a Liaoning cal. 5010. One of the earlier Chinese tourbillons on the market and particularly favoured by Million Smart Enterprises:

 BHI answered in an e mail about this watch:

"The main reason for selling it is as a BHI 150th anniversary special is to increase ownership of tourbillons, and stimulate interest in the world of mechanical watchmaking - clearly an important area for the Institute, and of course as a commemorative collectors' piece to celebrate the anniverary. But, let's face it, you're not going to be getting Swiss quality at this price, and I'm not going to suggest that you are. Having said that, the feedback from customers so far has been very positive indeed. And this story is true... one of our (fussy) watch experts, after receiving one of the first of our tourbillons proudly displayed a timing machine print out comparing it with his £17,000 Swiss tourbillon - showing that ours was the more stable by far!

They're not trying to sell a Swiss tourbillon. I think Mr. Taylor made that clear in his letter. A tourbillon is a very challenging complication. And if a watch expert thinks a Chinese 5010 ca Liaoning movement is nearly the equivalent of a Swiss movement on a very expensive Swiss watch, that's quite a tribute! Its really fascinating they manged to do the impossible at BHI - make a very beautiful watch for so little money!

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