Here is a link from antiquorum for a watch that was sold in 2005: catalog.antiquorum.swiss
8
It looks like a 4073 to me. Obviously a timepiece being sold at auction with no mention of redial is far from concrete proof that its original but just submitting it more to continue my development of knowledge for the brand.
BTW what references are both of those watches? The right one has a cal 454 I suspect.