As X350 said. However. The clasps may need to remade to fit the wider cut sections. Meaning you most likely need to redesign the clasp parts to fit the wider width of the band in order to reuse the Omega signed parts.
not that difficult for a goldsmith.
Do not take to a local jeweller unless they have a goldsmith on site to do the job. Otherwise they will send it out and just double the price to you.
best if you can find an independent goldsmith.
the above only works if the band is GOLD. Back of the clasp is blurry, but looks some markings