About 95% of the Seamaster 120 135.027 (the manual winding no date version) sold on ebay are fakes.

Fake kits including dial, hands and complete case are easily available for about $400.

New fake kits just appeared for the 165.027 565 auto date too.

BTW Omega doesn't have parts (dial, case) for these models for more than 20 years anymore.


Fakes are easy to spot:

Bezel have 120 teeth (144 for the real ones)
Lume spot does not have a metal ring, but is under a very small hesalite dome
Dial writings are greyish not bold white
Omega logo is different
Index are yellow painted, and don't look like real tritium



Casebacks have pointed A and Omega symbol is too small (same difference on the 166.027 auto date casebacks)



Inside the saceback for comparaison, fake left



Seamaster 120 auto date 166.027 dial is quite different:
Dial writings are greyish not bold white
More space between Omega logo and text
Indexes are narrower like the no date version
T SWISSMADE T is like the no date version
Date window is flat



Hope it helps

Here is the whole (real) family
166.027 auto date
136.027 manual date
135.027 manual no date
165.027 auto no date

 

Very useful; thanks for sharing

 

Thanks for sharing, I'm very grateful when members on OF share the knowledge they amassed over the years with other members.

 

REPORT Please !

https://www.ebay.it/itm/Omega-Seamaster-120/264650553863Purchases made through these links may earn this site a commission from the eBay Partner Network

https://www.ebay.de/itm/Omega-Seamaster-120-Black-Dial-cal-601-anno-1967/274263452327Purchases made through these links may earn this site a commission from the eBay Partner Network

https://www.ebay.it/itm/Omega-Seamaster-120-Automatic-NOS/264649351303Purchases made through these links may earn this site a commission from the eBay Partner Network

https://www.ebay.de/itm/Omega-Seama...ilitary-Cal-565-1967-Ref-166-027/312991592290Purchases made through these links may earn this site a commission from the eBay Partner Network

 

I was aware of a lot of these 'tells' but certainly not all of them.

Thanks for taking the time to put this together.

I am away to review my ebay watch list to see if there are any fakes on there!

 

Thanks for that

 

Great idea, thanks!

 

I also noticed a difference with the mid cases on the fakes. On the original SM120, the top side of the lugs is polished, while the fake ones are brushed

 

Right, but many are artificially aged, polished, scratched...

 

Genuine but fake bezel

https://www.ebay.de/itm/OMEGA-Seamaster-120-vintage-Diver-Stahl/303506569454Purchases made through these links may earn this site a commission from the eBay Partner Network

 

All four reported and now removed.

 

You've the power!

 

100% fake Automatic date 166.027 from Pro seller dgillette2677 (375Purchases made through these links may earn this site a commission from the eBay Partner Network ) Mattawan, Michigan, United States

https://www.ebay.com/itm/OMEGA-SEAM...66-027-AUTOMATIC-KEEPS-TIME-WELL/223939796214Purchases made through these links may earn this site a commission from the eBay Partner Network

 

an other one from Germany: artificially aged !!!

https://www.ebay.de/itm/OMEGA-SEAMA...Diver-Herrenuhr-Refer-Nr-166-027/184202764590Purchases made through these links may earn this site a commission from the eBay Partner Network

 

Thank you very much @uwsearch great initiative

 

Yes this is great. We need to report these and get them out of the market.

 

Reported.

 

Gone.

 

Fake dial
https://www.ebay.co.uk/itm/324109804038Purchases made through these links may earn this site a commission from the eBay Partner Network

 

Wondering about these two. Seem slightly different although same model.