Omega Speedmaster 3590.50 Cal. 861 Authenticity Check

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Kurt91

·Mar 16, 2026

Looking at this Speedmaster:

https://www.chrono24.com/omega/-ome...5249573.htm?searchHash=c10ea50e_BnXjGN&pos=10

Any thoughts? Does it look good? I didn’t see anything glaringly wrong, but figured you all would have a better eye.


I know it is mislabeled as a 145.022 should be 3590.50.

 

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dsio

·Mar 16, 2026·Ash @ ΩF

It's an early to mid 1990's regular Moonwatch, solid watch but likely overdue for service so factor that in from a good independent watchmaker too

 

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Donerix

·Mar 17, 2026

Also tariffs might apply coming from Japan

 

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jffoo

·Mar 18, 2026

Recently bought a few watches from japan and imported to the US, I was charged 10% import fee

 

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Domdiladoo

·Mar 19, 2026

Looks legit to me. The master of speed has the identical one with the same serial number range.
https://themasterofspeed.com/2022/03/01/a-d-b-association-donze-baume/

 

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ibis888

·Mar 19, 2026

Don't underestimate the cost and hassle of a service... with 3590.50s, it's not that difficult to find one that has been serviced recently if you are patient.

 

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Donn Chambers

·Mar 20, 2026

ibis888

Don't underestimate the cost and hassle of a service... with 3590.50s, it's not that difficult to find one that has been serviced recently if you are patient.

Just be wary of claims of service by sellers unless you have documentation from the watchmaker who performed the service. Lots of seller claim a recent service, but to them that means they threw it on a timegrapher, adjusted the timing so it looks good, and maybe added some oil to a few spots without a true service.

Unless I have full documentation of a recent, I buy expecting to need one in the near future.