Another one of these iconic divers has been across the bench, this example is in fantastic original condition and just needed a service and a couple of small jobs doing.

The caseback shows a production date of August 1974.

Inside it all looks in good order.

The dial and handset are just starting to go a lovely creamy colour.

No surprises were found during the stripdown.

A bit of a grubby mainspring!

It was soon stripped ready for cleaning.

After cleaning and inspection the rebuild began.

The owner supplied a new crown and stem as he wanted the watch as water resistant as possible.

A new crystal was also fitted as the old one had a graze.

Once these were fitted the case had a quick outing in the pressure tester.

After 15 minutes (the watch I was using to time it with is my calibre 6M25 Seiko which features a countdown timer amongst other things!) the watch is submerged….

….then the pressure is released. As there’s no movement to keep the crown held in place the slightest leak would pressurise the case and blow the crown straight off when it’s released. As can be seen all’s good with this one.

With the bezel removed it was noted the o-ring was a little short!

Also the lume was a bit crumbly behind the inserts lens. As half of it fell out on removal the rest was removed and the pip redone.

The movement was recased….

….and that’s another one good for many years to come!