Sorry... Didn't mean to cut the last post short. Was heading out the door with the wife and son to go play in the park... Didn't have enough time to complete the full post.
Anyhow...
A genuine 179160 measures at 26mm; so the 26mm measurement of the rep is correct.
However... If you are looking for something larger, I'm not aware of any of the 31mm Oysters having been repped as of yet. If you want something slightly bigger, you could do a frankenstein 15000 DATE model, which measures in at 33mm. Basically, this would require a gen case kit, which usually sells for around $200 - $300, an ETA 2824, Dateoverlay and hands from a Tudor Oyster Prince- It would be all genuine on the exterior, but ETA on the interior.
Here is a Franken-DateJust I did using the formula above. For the money, it's one of the best frankensteins to put together.
The 33mm DATE would be the same concept.
Hope this helps...