''A chap from Wanaka rang me and asked me if I knew of anybody that wanted one. He sent me over some photos and I thought, 'that could be me', so it went form there.''
The motorcycle was in poor condition when it arrived.
''It was together but it was pretty rough ... very rough and quite a lot of stuff missing.
As parts were not easy to come by he had to make several himself, including crank pins, pistons, gears for the motorcycle's gearbox and ''just about every nut and bolt''.
He also created handgrips using his 3-D printer.
The motorcycle has some unique features, such as a gear change lever on the right-hand side and a brass headlight, still in original condition.
Mr Watt said the headlight was his favourite feature, given its rarity.
''As I've been told it only came out one year with a brass headlight ... I'm quite fortunate it was still on the bike with all the glass and everything.''
He was pleased with how the restoration turned out and enjoyed taking it out for a spin from time to time.
''I just like the simplicity and the rugged look. I got it going on New Year's Eve, but I didn't actually try it on the road for another week or two.''
When asked how it performed on the open road, he said it drove ''not too bad'' and happily cruised at between about 55kmh and 70kmh.
''You need to be quite mechanically minded and I'm quite fortunate that I've got a good workshop so I can do it all myself. If you didn't do it yourself it would be quite expensive, I imagine.''
Mr Watt, who owns two motorcycles and a moped, had no plans to restore any more.