I got an official reply to my query as to whether macri effect can be restored, from buccellati. In case anyone else is wondering ♡ 
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The light spreads elegantly over the semi-matt surface created by Gianmaria Buccellati 40 years ago and known worldwide as the 'Rigato' technique.
To achieve this 'fabric effect', a master goldsmith engraved the entire precious surface, strip by strip, entirely by hand.
When a model is not available, we offer our customers the possibility of having it made to special order in one of our boutiques or official dealers by a craftsman, and we confirm the waiting time, which is currently about 8 months.
Buccellati jewellery is meant to be worn every day and therefore certainly durable.
Since we care passionately about each of our sophisticated creations, we have put together a series of tips, that you can find in the care advices section, or below, to help you take care of your beloved bracelet.
Should the need arise to have your Macri bracelet re-engraved or to repair any accidental scratches, you will always have the possibility to visit any official Buccellati boutique or retailer , where you will be able to request an after-sales service that will bring your bracelet back to the high standards of our Maison."

"
The light spreads elegantly over the semi-matt surface created by Gianmaria Buccellati 40 years ago and known worldwide as the 'Rigato' technique.
To achieve this 'fabric effect', a master goldsmith engraved the entire precious surface, strip by strip, entirely by hand.
When a model is not available, we offer our customers the possibility of having it made to special order in one of our boutiques or official dealers by a craftsman, and we confirm the waiting time, which is currently about 8 months.
Buccellati jewellery is meant to be worn every day and therefore certainly durable.
Since we care passionately about each of our sophisticated creations, we have put together a series of tips, that you can find in the care advices section, or below, to help you take care of your beloved bracelet.
Should the need arise to have your Macri bracelet re-engraved or to repair any accidental scratches, you will always have the possibility to visit any official Buccellati boutique or retailer , where you will be able to request an after-sales service that will bring your bracelet back to the high standards of our Maison."