Omega Constellations - bricks on the observatory roof?

Peemacgee

originally the 'brickwork' observatory only appeared on solid gold cases

then for reasoning only known to themselves, around 1966 Omega swapped it around for appearing on non-precious cases instead (Including gold-capped)

However, in true Omega style they continued to produce some gold cases with brickwork


edit - here is a link to Desmond's essay on the matter
http://omega-constellation-collectors.blogspot.com/2008/03/constellation-medallions.html


@Laneside - is your middle watch an English or French gold cased watch by any chance?

kaplan

My personal theory is the tiled one being the next iteration of the design, they used them both on the same models though to differentiate the case materials

Peemacgee

Well, these cases are generally known as English cases as they were produced either in Birmingham ( Dennison) or London (Shackman)

You will notice the difference in the medallion stars size and shape to your other watches - which is a dead give-away for an English or French case.

If you haven't seen it you may also like to read this essay by Desmond on Dennison cases
http://omega-constellation-collecto...01/from-advent-of-bretton-woods-monetary.html

it features your '.5004' reference, amongst others

However, if your's was produced late or later than '67 (the movt serial suggests ~'67) it could be a Shackman case as Dennison went bump in '67 and Shackmann took over their production.
The marks inside the case back will tell you which
A.L.D for Dennison
Stylised 'S' for Shackman

-and the hallmark date letter will give you the case production date (which could differ by some years to the movement serial date)

Peemacgee

Well, these cases are generally known as English cases as they were produced either in Birmingham ( Dennison) or London (Shackman)

You will notice the difference in the medallion stars size and shape to your other watches - which is a dead give-away for an English or French case.

If you haven't seen it you may also like to read this essay by Desmond on Dennison cases
http://omega-constellation-collecto...01/from-advent-of-bretton-woods-monetary.html

it features your '.5004' reference, amongst others

However, if your's was produced late or later than '67 (the movt serial suggests ~'67) it could be a Shackman case as Dennison went bump in '67 and Shackmann took over their production.
The marks inside the case back will tell you which
A.L.D for Dennison
Stylised 'S' for Shackman

-and the hallmark date letter will give you the case production date (which could differ by some years to the movement serial date)