Teardown + Service: Hamilton Fontainebleau B64048-4 / ETA 2452

Two ETA 24xx movments in one day – first the Glycine Compressor, and now Constantine’s Hamilton Fontainebleau!

Two very different watches, but with a very similar movement.

Hamilton wasn’t quite as honest about the use of ETA movements, and stamped them with their own inititals – there is no trace on the movement giving away that it’s an ETA. Continue reading

Repair: Bulova Accutron DayDate 218 / 1976

It’s like London busses – only that it’s Accutrons! This #3 out of the 5 Bulova Accutrons Constantine has sent me for repair.

This is a smaller job – it’s just that the winding pin has come loose, and it won’t fit back in. On the 218, you have to be very careful when unscrewing the locking-piece screw to take the winding pin out – a bit too far, and you won’t get it back in. So I will have to dismantle the bottom plate to get to the pull-out piece.

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Repair + Service: Bulova Accutron 218 Day/Date

I do love Accutron watches – the gentle hum and the perfectly sweeping second hand are enough to get me going 😉

This particular Bulova Accutron was sent to me by Constantine from NY State together with a batch of other watches. It is his father’s watch, and he would like to see it working again. His father’s name is even engraved on the back. Continue reading

Teardown: Bulova Accutron 218

Bulova didn’t invent the use of tuning forks to measure time – but they were the first ones to pack the technology into a wrist watch. One of the great inventions in watch making in my humble opinion, and a great piece of technology.

The watches are mainly mechanical. Instead of a balance / hairspring oscillator, the Accutron uses a tuning fork that swings. The electronic part is keeping the tuning fork swinging – all the rest is done mechanically.

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