Has someone any information about a first batch of Seamaster 300 ref 2531.80 (1994???) with following features:

Calibre 1109
Bracelet 1503/825 with not marked end links
No logo on elium valve crown
Serial 49mil on movement and case (1986???)

Thank you

 

What do you want to know? Yes the serials were misleadingly early on both Pre-Bonds and SMPs, in fact the watch was launched in 1994 with a tritium dial. The movement is a derivative of the ETA 2892 and closely linked to the revised 1120 which came about 12-18 months after the SMP launch.

 

I found a 49mil serial seamaster 300...
Did Omega choose calibres 1109 producted in 1986 to istall in Seamaster 300 model 1994?
Had the first batch different bracelet endlinks and no logo helium valve crown?

 

What is the case number inside the case back?

 

Here it is. I have already read some posts about incorrect reference, but I would like to add that this Seamaster comes from an authorized dealer near my home (I have also Omega warranty with the same serial Numbers) that I know very well, and it seems never touched.
Could Omega use any casebacks that was available for this first batch?

 

I don't know what you mean about the "incorrect reference" as that is the case number for the early version of this watch - that is what I wanted to confirm. If you want to provide me with the full serial number I'll double check that it is correct for both the watch reference and the case number.

 

I sent you a PM with the full serial number.

Thank you

 

Don't know if it helps on your inquire, but my Lillehammer 1994 Seamaster 2832.21 (sn 495911XX) has the same case number (168.1503), caliber 1109 movement and does have the logo on the helium valve. This particular limited version came on leather band, so don't know about the 1503/825 bracelet without markings

 

Aside from the 1109 movement, using the online serial number tables will give you an incorrect low date.. like the 1980s. I think the 1109 SMPs will be collectible soon. These are already vintage (25+ yrs old)

 

As I mentioned via PM, the serial number is too low to pull up anything on the Extranet, and since this is before the year 2000 I'm sure that is intentional as Omega wants the cash for an extract. Also as I mentioned, an HEV without logo or anything in it is something I haven't seen before, so that would seem to be off on this one.

 

I remenber to have seen helium valve crown surely mounted on some mid size SM bond.
Could after market HEV crown exist?

 

Hi, i can confirm the caliber 1109 and the helium valve without Omega logo, tritium hands and dial.
The bracelet is 1503/825, a little different from the 2531.80 latest models
This is mine, serial number 54099xxx, both of 1993.

 

Thank you very much!

Does anyone own pictures of the no brand HEV crown side ?

 

The helium valve without logo Omega has been fitted also some year later, i think until 1995, maybe only for some batch production.

 

Same hev crown, same bracelet of mine!

Thanks a lot for your help.

 

Yes, i think the only difference is on the dial , 4 lines instead of 3 (no "chronometer")

 

You are right.

 

4 liners on Seamaster Professionals typically provide a confirmation of an automatic movement (versus 3 lines on quartz models). There are exceptions, like my Lillehammer below which runs on the caliber 1109 automatic and has the Seamaster wording on the top (rather than on the bottom), only having chronometer on the bottom as the rest of the space is used for the Olympic rings and the Swiss flag:



verus the “regular” version (2532.20) dial which does have the 4 lines:

 

I had an early SMP 300 with the same features.

 

Hi there I just found this thread. I recently picked up a 2551.80 mid size with cal 1109 movement. Serial number on the movement is 49xxxxxx, matching the number on the lug. 4 lines with chronometer. Plain HEV without the omega logo. Is this correct then? Thanks.