Whats the difference between Aquatimer 3548-03 and 3548-06

Hi All,

Just wondering anyone know what the difference's would be between the two Aquatimer variant's?

a) Could it be the finish as I know there were some that has polished finish and some with brushed finish.

b) # out of 1953?

I believe some of the earlier (-03) output had polished cases but IWC switched to brushed. There is an early post in the archives (11 Sep 2004) - not sure if this link will work:

From the archive

Unfortunately, the link in the post to a chart does not work - maybe someone has the information saved?

Thanks Stanford for the quick update. New Cousteau Divers owner who just wanted to look even closer :)

Nice pair of watches!

Thanks Joep appreciate it.