Bracelet reference 1503 vs 1503/1 for Constellation 167.005

Fedi91 · Aug 4, 2026

Hello everyone,
I’m trying to determine the correct bracelet for a Constellation ref. 167.005.
I found the attached page from an original Omega catalogue.
It clearly distinguishes:
Ref. 1503

ST 135.010
ST 165.020
ST/CD 166.020
ST/CD 168.010

Ref. 1503/1

ST 167.005
ST/CD 168.005

However, I often see the recommendation on Omega Forums that the correct bracelet is simply “1503 with No.70 end links”.

My question is:
Why does the Omega catalogue distinguish between 1503 and 1503/1?
I’m particularly interested in answers supported by Omega documentation (parts lists, service documents or period catalogues).

Dan S · Aug 4, 2026

I think that the 1503 has interchangeable end-links while the 1503/1 does not.

Peemacgee · Aug 4, 2026

Dan S
I think that the 1503 has interchangeable end-links while the 1503/1 does not.

I don't think I've ever seen the /1 designation, other than in this catalogue.
Is it possible that, in their catalogue, the 1503/1 is their designation for the first iteration, meant for the dogleg? - coming with No.70 end links.
- and subsequently, the 1503 bracelet style could be paired with other references but with specific endlinks, to be specified separately to suit the particular watch reference. (e.g. 19mm endlinks for the .010)
(the BOR can also be paired with the 168.004 -but presumably this catalogue is after the .004/.010 transition, so likely later in the '60s)

Either way @Fedi91 - the correct original bracelet reference for a dogleg (167.005 & 168.005) is the 1037 with No.70 end links.
Same bracelet, earlier reference.
The reference of end link also changes latterly but they are the same shape IIRC (can't recall the new end link designation but someone will know)

here is a link to an essay by Desmond.
It's a little confusing as he jumps from the earlier 1036 7-row 'rounded' BOR, often seen on 50s lyre lugs and Seamasters, to the brick-like 1040 often seen on C cases.
1037 is the 9-row 'squarer' BOR often seen on doglegs

https://omega-constellation-collect.../omega-constellation-accessories-1952-75.html

amuscare87 · Aug 4, 2026

Peemacgee
The reference of end link also changes latterly but they are the same shape IIRC (can't recall the new end link designation but someone will know)

After the first iteration of these endlinks, 70 for the 7 row BOR, and 11 for the 5 row BOR, Omega stamped a 5 in front of both, 570 & 511, respectively.

The fit is the same and there are minor cosmetic differences, so minor it’s almost never noticed. I have a 570 and 70 endlink on one of my bracelets and you can’t tell the difference

Fedi91 · Aug 5, 2026

Thank you all for your replies.

@Dan S , you’re probably right.

I believe the 1503/1 was originally made with fixed end links, either straight or curved, specifically for the dog-leg cases.

I’ve seen a few 1503/1 bracelets with removable end links, but perhaps those originally had fixed end links that were cut off to make them compatible with a wider range of cases and therefore easier to sell.

At this point, I’m wondering whether a 1503/1 with integrated curved end links is actually a better fit for the 167.005 or 168.005 cases than a 1037 or a 1503 fitted with No. 70 end links.

In fact, as far as I know, the 1967 Omega catalogue, from which I posted the photos, is the only official Omega source that associates these cases with a specific bracelet reference.

I hope I’m wrong, because it would mean that the 1503/1 is an extremely rare bracelet that rarely appears on the market.

If anyone has any official Omega documentation suggesting otherwise, I’d be very interested to see it.

In any case, if anyone happens to have a stainless steel 1503/1 with integrated curved end links, I’d be very interested in buying it.

For reference, here are two documented examples of original 1503/1 bracelets with integrated curved end links:

Omega Forums (sold by @Davidt ): https://omegaforums.net/threads/vintage-omega-1503-1-beads-of-rice-bracelet.186889/⁠
Sterling Vault Auctioneers (archived by Barnebys): https://www.barnebys.de/auktionen/o...nless-steel-bracelet-1503-1-NzLsnRo-627222550

Bracelet reference 1503 vs 1503/1 for Constellation 167.005

Fedi91

Dan S

Peemacgee

amuscare87

Fedi91

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