Vintage 1977 Hewlett Packard HP 01 Calculator Watch

There were 2 versions made of this watch, stainless steel and gold plated. Although a few sellers on the Internet who have one for sale ask close to $4000 for a gold plated one with box and papers, my belief is that the stainless steel is a better buy. 

The reason is that once the gold plating flakes off there is not much you can do about it. 

This watch measures 40.76 mm across and is just right for today’s taste for bigger watch. It is 15.2 mm thick.

Right now the watch will fit a 7 inch wrist but I was lucky to buy a used bracelet so I have a few links to elongate if necessary :)

The bracelet can be taken off and the watch can be worn on the leather strap. The lugs are 22 mm. 

The clasp contains a small stylus which can be easily removed to operate the keys which are depressed below the surface. Also, if you need a bigger stylus you can purchase an automatic pencil and replace the lead with a thin plastic rod. 

This watch can perform all kinds of calculations and to learn all of the available functions please contact me for the link. This watch was a genuine computer with advanced calculations and functions similar to the scientific calculators of that day. Please go to the link below see this model disassembled and read more.

http://www.crazywatches.pl/hewlett-packard-hp-01-calculator-1977

Let me add that this watch was of the first run and American made as you can see on the case cover.

The case and bracelet however were manufactured in Switzerland.

 Later ones had both American and foreign components and marked as such.

I do not have the manual or the box, only the complete watch with bracelet and stylus which fits into the clasp. 

You can find the operating instructions on the internet, these are also on the first site I included a link to.

I may print them and include with the watch.

Ionly tried a few simple calculations to see that everything operates O.K.

The watch case is free of any dings or scratches. The crystal has a scratch and a couple of chips at the right edge.

The bracelet has one deeper scratch, close to the clasp.

As you see from  the pictures, you will also receive an aftermarket plastic case opening tool.