Brendan sent in this Rolex Prince from the 1930’s complaining that the crown felt detached from the movement when trying to set the hands.

The movement is removed from its case and the dial and hands are taken off to investigate what is causing the problem. I test the keyless works and it is observed that when the crown is turned in hand setting mode the sliding pinion falls below the intermediate winding wheel making setting the hands impossible. Under the microscope it is just possible to see the end of the stem moving about on the other side of the movement.

My colleague Frank always turns up to our Guild board meetings with funky self-made watch parts, and I was getting curious. He told me that he had a CNC mill, and I pestered him to let me visit him to have a look.

Frank graciously let me come to his workshop, and this is where my little adventure starts.

We often get water damaged watches sent into the workshop, and usually, it’s game over.

This watch saw water ingress a long time ago, and it was left out “to dry”, or, more like it, left out to rust in peace.

If you don’t act quickly, it’s the end of your watch. A week will do nicely, and you have thrown away thousands or at least hundreds of pounds.

As in many other fields, data is a very important matter. We have to find our spare parts, adjust the timegrapher to the correct lift angle, etc., so it’s very important to have the right data at hand.

So far, Generale Ressorts published a printed catalogue a very long time ago, and that’s still the only source of data when it comes to matching mainsprings with movements. There are some suppliers that have entered some of this data (Cousins, Ofrei, Boley) into their own systems, but a generally available list of mainsprings and where they fit wasn’t available anywhere.

Continue reading →

This is the iconic Seiko “Turtle”, THE classic Seiko diver. 

Although Seiko obviously designed this as a dive watch, it was also a great choice for a soldier in combat. It was immortalised in the film Apocalypse Now, where it was worn by Martin Sheen. Water resistant, with a simple robust automatic movement, a timing bezel and also a hacking feature for synchronising (and of course a G-shock wasn’t available back then!).  Continue reading →

If you are into Speedmasters, there are some holy grails. An Ed White is a very nice thing to have, and increasingly hard to find if your funds are limited. Even nicer is a 2998-4, and even harder to find, and harder to pay for…

Out of the blue, Angela from the States sent me an email, saying that she had a Speedmaster, and that she didn’t quite know if it was worth repairing. Attached was this photo.

I had a good look at the photo, and told her that it was indeed very much worthwhile to restore the watch, and that she was most likely to have something of considerable value there … Continue reading →

As Christmas is approaching, some of our readers will find one of these Google Home appliances (mini or the bigger version) under the tree.

Some of you might know that I like to tinker with software (the interface our clients use to check on their jobs, and the library showing all our jobs have been written by me), I was very tempted when I got a Google Home mini as an early Christmas present.

So I just had to write a bit of software that interacts with the device, and I started off with an application that lets me check what the next job is, what I’m currently working on, and how long the queue is, for use in the workshop. That was quite nifty, and I wanted to develop something for my customers as well.

So here it is – the instructions for set-up are here, and it’s pretty easy to do. The app has just been approved and published (last night), so not all of you might be able to discover it yet, as that can take a day or two.

If you have an iPhone, just download the “Google Home” app, and you can use this feature as well!

Please let me know if you find it useful, and also let me know what additional functionality you would like to see.