The first variant of the Porsche Design by IWC OCEAN BUND, ref. 3501.

Dear Heiko

it probably would be helpful for collectors not that deep in the OCEAN topic
to explain what Geo 1, 2 and 3 are, what problems they suffered from and how
the next gen tried to solve that problems (with Geo 2 not in a convincing way,
thus making a further gen nessary). Furthermore, that for what reasons the
different generations don't allow to simply put off a gen 1 bracelet and to
mount a Geo 2 or 3 instead. As your capabilites regarding photography are
outstanding I'm sure you are able to deliver a pictorial lecture many
participants of this forum will store on their harddisd/in their cloud
storage.

Regards

Th. Koenig