Chronostop band identification

Opened an old box and found my Granfather’s Chronostop Geneve. I remember him wearing it every day when I worked with him paving asphalt driveways and parking lots. Yes it’s not perfect but it’s got all his hard work in it. Unfortunately the band is a little small for me and I would like to source an extra link or two for it. Can anyone help me identify the band numbers or any identification? Thank you in advance. All advice is much appreciated.

That seems to be a “rally” bracelet. Others can correct me, but I don’t believe that was made by Omega. It seems more likely that it was purchased separately and the Omega clasp/cover installed.

it would likely be hard to track down links for it without knowing who made it or having a reference number for it. Your best bet is probably to buy a bracelet clasp extender like this:

FIFY 😉

Thank you for the responses. All great information that I never would have figured out otherwise.