After seeing The Zigmeister's wonderful review of the modified Asian 7750 copy movement with seconds moved to the 3 o'clock position, some were querying whether this could be done for a "seconds at 12 o'clock" movement, such as those used in the AP Offshore's (AP ROO).
There are a few differences between this and the seconds at 3 or 6, whereby instead of moving one subdial to an "empty" position such as the 3 o'clock, we are now having a crossover of subdials.
To do this is a little more complex,
1. the subdial at the 12 o'clock position will have to be moved elsewhere, let's say to the empty 3 o'clock position (or anywhere that is more mechanically efficient). (It is better to have less gearing on a more wearing part of the movement, such as running seconds at 9, which is why I think this one is moved).
2. the running seconds subdial at 9 will now have to be moved to the 12 o'clock position.
3. the subdial originally at 12, but now at 3 will now have to be moved to the 9 o'clcock position.
I don't know how many other watches and brands use this movement apart from AP chronos, so it may not be viable for makers to produce such a movement.
There are other "problems" with producing the AP Offshore.
-The plane of the pushers and crown is different from standard. This would have to be corrected by the case makers, but I think can be done with this movement, just use "internal" pushers that slightly incline to create the correct effect;
-The thickness of the movement: will it be too thick for the AP ROO or AP RO Chrono?
-subdial placement on the genuine seconds at 12 has the running seconds at a slightly different position to the standard, thus limiting the re-usability in other brands. This means the movement makers may not bother with this modification for the AP if they don't believe it will be a big seller;
-getting a genuine dial or the dial makers fabricating a new, more correct dial.
The AP ROO could just be made without fixing the dial and the pusher placement and I'm sure most would be happy with that (and existing owners of the MBW who could do a movement swap).
Can anyone list which other watches use this movement configuration?
And any other ideas on how to achieve this result?