145.012 strange caseback

Posts
386
Likes
1,154
Hi
Can someone tell me why this caseback doesnt have no 67 (or 68) stamped on the caseback?
I was looking on the forum but cant find any thread.
Edited:
 
Posts
1,241
Likes
3,868
I believe you have yourself a service back. It’s authentic but not original to the watch.
 
Posts
386
Likes
1,154
Have you seen any other similar, or same backcase?
 
Posts
388
Likes
565
I would second the service caseback opinion. I have seen similar but, I cannot be certain if they were identical.
Notice the elongated notches on back used to remove the caseback. Much longer than the originals, in addition to the different engravings.
 
Posts
6,761
Likes
12,422
I happen to be at a friend, checking out a few things while Omegaforums.net is on his computer... so we couldn't help to check his large collection of old & service casebacks and the only similar Hippocamus he has , contains as a last line on the inside 145 0012 SP
 
Posts
386
Likes
1,154
So nobody has a clue about this strange caseback!
 
Posts
1,241
Likes
3,868
.... we already told you it’s a service caseback...

Try searching SP in the forums and you may stumble across a discussion on its meaning. I am not certain it would apply in this case.

A similar one recently sold on eBay:
Dead Link/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/113629266483

 
Posts
5,309
Likes
24,290
.... we already told you it’s a service caseback...

Try searching SP in the forums and you may stumble across a discussion on its meaning. I am not certain it would apply in this case.

A similar one recently sold on eBay:
Dead Link/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/113629266483

This is quite different to the OP caseback
 
Posts
386
Likes
1,154
I dont see any simialrity with my caseback, beside no year inside.
And all 145.012 casebacks have SP inside..
I have found this one on bay:

Dead Link/rover/0/0/0?mpre=https://www.ebay.it/ulk/itm/273760492642
 
Posts
1,241
Likes
3,868
I guess “similar” was too strong. Does it remain a service caseback?

I can imagine some backs didn’t get stamped with a date, but have a hard time imagining they found their way on to a watch leaving the factory.

@Igora You could always shoot the seller a message on the piece you found and see if he has any info on the back?
 
Posts
522
Likes
679
.... we already told you it’s a service caseback...

Try searching SP in the forums and you may stumble across a discussion on its meaning. I am not certain it would apply in this case.

A similar one recently sold on eBay:
Dead Link/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/113629266483

I was under the impression that the service casebacks had "LL" and an extra "0", e.g. "LL 145.0012" (as in the photo above, and per Moonwatch Only). Are people's opinions still that a "145.012 SP HF" with no year is definitely a service caseback? I've also recently come across one and am trying to figure it out...
 
Posts
18,148
Likes
27,441
So nobody has a clue about this strange caseback!
Massive clue what this is.

An in period service caseback.


Omg it’s a special plonguer HF!!!! Super rare!!!

compared to grains of sand on the planet.
 
Posts
522
Likes
679
Massive clue what this is.

An in period service caseback.


Omg it’s a special plonguer HF!!!! Super rare!!!

compared to grains of sand on the planet.
Oh ok. Although I imagine "in period" is fuzzily defined? Any opinions on how to value it? Somewhere between original and contemporary service?

Also, any guesses as to why Moonwatch Only doesn't include this in their research/documentation? Are there many things like this that they don't? (Still new-ish and trying to learn).
 
Posts
10,354
Likes
16,206
There is no great mystery here IMO. This will be a service back from sometime from when they stopped being fitted new in 1969 up to the mid 80s when Omega went over to the 7 digit PIC. As for value, well it’s pretty worn which won’t help.

Yes there are other historical service parts not covered in MWO. Here is an example, a 145.012 with ~1970s long index 321 service dial, minus the expected AML. It was probably contemporary with the 6 digit dateless back above. Seen a few times but not mentioned in the book.

Edited:
 
Posts
18,148
Likes
27,441
Oh ok. Although I imagine "in period" is fuzzily defined? Any opinions on how to value it? Somewhere between original and contemporary service?

Also, any guesses as to why Moonwatch Only doesn't include this in their research/documentation? Are there many things like this that they don't? (Still new-ish and trying to learn).

I’d say no later then mid 70’s

but who knows. They are not the norm and impossible to research.

currently collectors would take this as a slight hit to value.