: Looking at the box closely again, something else occurs to me that
: makes me think it might be an early box before the Carrera
: design was finalised. One of the novelties with the introduction
: of the Carrera was the internal bezel between the plexiglass and
: the dial, with markings to show fifths of a second.

: That's a good way to check the watch actually - 404s and 3641s
: don't have this extra ring but all these Carreras (bar the
: Carrera 12 Dato) should.

: The OTD photo below shows the ring quite well - it's an angled
: bezel fitting between the dial and the glass:

:
:

: The box image definitely looks not to have one and the watch may
: not either?