Bonfield appraisal • restoration • timepieces • fine jewellery

    Authorised Service Centre
  • Nienaber Bunde
  • Sothis
  • Jacques Etoile

Showcase of Restoration Work (Part II)

The refinishing process is a complex one, starting with the methodical disassembling of the entire watch part by part. In some cases, special tools are developed just to refinish certain case parts. Refinishing has to be done in a separate room so that dust particles do not contaminate the movement of the watch.

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Each case part of the watch is polished individually to reinstate its original factory specifications, and only after this does the reassembling of the watch take place. Even the screw heads are polished, such that by the time we are done with the refinishing, your watch will look as new and stunning as the day you first took it home.

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Before After

These pictures show the refinishing works that we have done for our customers.

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Before After
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Sandblasting is a metal-cleaning process which if not done professionally, could lead to some dimensional damages to the watch, i.e., loss of metal from the surface being cleaned. It is an effective cleaning process for hard surfaces by way of using high pressure air. Sandblasting can be used for smoothing, shaping and cleaning hard surfaces. The effect of sandblasting is similar to that of using sandpaper, but the former provides a largely more even finishing.

Note the picture below. The timepiece sent in by our customer shows an obvious rough and speckled finishing that is certainly way out of factory’s specifications. After our servicing, you will notice a much softer, uniform, matte, clean and bright finish. This is the desired effect and is only made possible by using the correct procedures, methods and tools. The sheen and lustre seen in the “after” picture is associated with factory’s specifications. More importantly, there are no dimensional changes in the metal which would ruin the look of the valuable timepiece.

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Before After
Watch Service Watch Service
Before After