Vintage Omega Geneve...verification?

[Hoozah]

Hello, after lurking omega forums for a while, I finally decided to pull the trigger and bought a vintage omega.

Here are some pics from the seller:







The case ref is 136.012 with CAL 613...which seems to be a match in Omega database(OMEGA Watches: Vintage Watches Database)...however, I have two concerns

1. The caseback says seamaster,but the dial says Geneve...is this a "franken" watch?
2. Also dial seems to be slightly different than one in the DB (single line 12 o'clock indicator vs double line). Although, this could be the photo issue...

If anyone could give some insight into this matters, it would greatly ease my mind.

Thanks!!

[Kungfucowboy]

It's alway possible that a watch has been cobbled together. However to address some of your concerns some genves from that time period (usually if not always one with a 6xx movement) came with seamaster backs some are even marked on the dial seamaster geneve. Omega used many different dials and indices yours looks suitable for a late 60's watch. also the movement case and dial all seem to have consistent levels of wear (an example of inconsistency would be a pristine dial with a discolored movement, that kind of inconsistency is a strong sign of a franken watch).

[Hoozah]

Thank you sir,

it eases my mind a bit. I will post better pictures once I have it in my hands!