Help identify OP Date

[Slimpee]

My wife's uncle brought over his gold OP with a textured champagne dial with diamond indices. It has a stainless caseback. Non-quickset movement. It appears to be a 34 but I'm not 100% sure. It's pictured below next to my DJ41. Aftermarket bracelet.

I don't have any tools to pull the bracelet or caseback or I wouldnt have to post here.

I've done a bit of Googling but I'd like a second opinion.

Can anyone give me a reference and/or any other info on this piece?

Thank you!

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[Dan S]

It's just guesswork, but if you forced me to speculate, I'd say that it's from the late 60s / early 70s with a modified dial. Ref 1550, or something like that.

[Slimpee]

Originally Posted by Dan S

It's just guesswork, but if you forced me to speculate, I'd say that it's from the late 60s / early 70s with a modified dial. Ref 1550, or something like that.

I thought the same thing. No pie pan dial but I don’t know if those came on the OP Date. Maybe AM dial?

[Dan S]

My guess would be a legit dial that was modified with the diamonds. It's pretty common to see.

[offrdmania]

If its a stainless case back then it is gold plated. Doesnt look gold capped. They used about 10 microns of gold when plating and the watches were only available for a very short time, 3 years maybe. The bracelet should have the letter P on an end link or the word applique on the clasp

[Tools]

Early 70's 34mm. The bracelet does not go with the watch and the end links don't go with the bracelet.

[Slimpee]

Correct, the bracelet is aftermarket. Thank you both!

[Slimpee]

I believe the model is a 1550. Writeup on the model here:

https://beckertime.com/blog/review-o...date-ref-1550/

The article says the model didn’t come with diamond indices but with 70s Rolex, who knows…

[Dan S]

Originally Posted by Slimpee

I believe the model is a 1550. Writeup on the model here:

https://beckertime.com/blog/review-o...date-ref-1550/

The article says the model didn’t come with diamond indices but with 70s Rolex, who knows…

I also thought it might be a ref 1550, but if you need to know for sure, it's easy enough to remove the bracelet.

One can distinguish a factory diamond dial by the way the diamonds are set. If you study some legit examples, you will quickly understand the differences.