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Hi all

I'm trying to understand the serial numbers on this Omega Constellation: https://omegaforums.net/threads/ome...xe-2852-3-cal-501-incredible-condition.37559/

They can be summarised as follows:

Movement type:
Apparently 501, but can't see from the photos. I have not opened the case yet.

Movement serial:
15035659

Case back serial:
120609
2852 / 2853 SC

Problem 1:
According to this website, the movement serial for the watch should start with 175 (gents, self-winding chronograph, water resistant) but instead it refers to 150 (gents, self-winding without seconds, ???).

Problem 2:
The SC is a bit of a mystery. According to mondodec it might mean seconds centre. But according to this website it might mean PVD grey. Can any of you shed any light on this?

Problem 3:
mondodec's Omega Constellation blog has a PDF on case back numbers, but 120609 isn't there anywhere. In fact, googling 120609, 120-609 or 120.609 doesn't turn up anything. Can anyone explain why this could be?

The Omega Vintage Database isn't very useful.

If any of you can help me better understand these serials, I would greatly appreciate it.

Cheers.

Problem 1: you are mixing up serial number and reference. That table is for reference numbers, but it doesn't apply here because that system came later. The reference here is 2853-SC and I believe it's just a model number, no special meaning.

Problem 2: SC is seconde centrale here. The metal codes are rarely used and when they are they are in front of the reference, for example BA 168.023.

Problem 3: see problem 1.

Thanks micampe. Yes the most likely explanation is I am confused or mistaken. I am quite new to watches so I'm trying to learn. Thanks for your patience.

So in your opinion, all these numbers make sense for the watch model?

So what exactly does the "120609" mean?

In this instance, is it nothing?

I absolutely love it. I feel so good wearing it, like I have some art on my wrist. I think it's a beautiful watch.

Sometimes I'm on the subway and I catch people looking at it. (I'm not flashing it, but I live in Hong Kong so generally my sleeves are somewhat rolled up because it's so hot here). A few days ago two British girls were talking to themselves, and out of the corner of my eye I could see them rotating their heads towards my watch, they then went silent for a few seconds as they looked at it, and then continued with their conversation.

I really want to buy one of these, but I think it'll be impossible:




Photo's are courtesy of Desmond's excellent blog: http://omega-constellation-collectors.blogspot.fi/