Service: Prisma FHF70

Joris from the Netherlands sent this watch in – and there is a connection, as Prisma is a Dutch watchmaker. Prisma used a Swiss FHF70 for this watch, a reliable workhorse.

The crystal is shot, some of the luminous dots have come off the dial, and the minute hand has lost its luminous compound as well. The movement also wants a service, so let’s get this going!

Having taken the dial and hands off, I send them off to David Bill and Sons.

A simple, clean, well constructed movement.

There aren’t too many parts, as it’s a hand-winding, no date movement.

The new mainspring goes into the barrel.

Ticking again.

Almost ready to put the dial on.

I press the hour hand on.

With a new crystal, the watch looks pretty snazzy again! Nice and thin, a simple design, and a beautiful watch.

5 thoughts on “Service: Prisma FHF70

  1. Pingback: FS: vintage Prisma (Dutch) with FHF70 movement (Swiss). Affordable.

  2. What a lovely looking uncluttered dial. I like the design of this face very much.

    Minor point; why wasn’t the dial cleaned all round the rim? The sections that have been cleaned for the reapplication of the luminous dots fairly stand out, unless I’m reading the picture incorrectly.

    • Hi Scott,

      I had only asked Christian for a relume, not a dial cleaning. The main reason for this was that only the crystal seemed to be really damaged and dirty; the dial seemed clean enough for its age.

      Unless a dial is so dirty that I can’t read it anymore, or unless it has dirtied really unevenly, I’m inclined to leave it be.
      In this case I might not have even asked for a relume, but since some lume dots were gone, and others weren’t, and since one hand still showed lume and the other didn’t, I thought it might look better to have all the lume taken off or renewed. I like to be able to read my watch in semi-darkness, so I chose reluming.

      Since the first picture (the ‘before’ shot) did not show all the damage of the crystal, I’m sort of hoping that the ‘after’ shot exagerates the cleaned spots in some places more than in others. But I haven’t seen it in the flesh yet, so I can’t be sure.

      The watch was a cheap ebay buy (no-one else bid on it, so I got it for the €20 reserve). At first I was hesitant to spend the extra money for a full service and relume, but I have a feeling I’ll wear it a lot, so am happy that I sent it in 🙂

  3. Yippie! Looking good again Christian, thanks!

    I’m still trying to Google for more information on this watch, but it’s proving to be quite hard to find solid info. Ah, well, at least I have this beautiful watch again to check how long I’ve been Googling 😉

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