My first Omega Seamaster ( 2551.80 )

Cosmin Robert · Dec 24, 2021

Hello! This is my first Omega watch I own, and I wanted to share the joy with other people on this forum! This is a Seamaster, 2551.80 automatic, year of manufacture 2001! The watch came with its original box and its original documents! I wanted to ask you, in your opinion, how it looks. I mention that it is polished and serviced. And I have 3 questions too. 1) Can I "overwind" them if I wind it too much? For example, I have to wind it 50 times to start, can I overwind it by mistake? Or does it have special overwind protection? 2) Is it normal that when it is unloaded it only starts at the 50th manual rotation? 3) The moment I want to screw the crown inside, and I insist on screwing it a little harder when it's on, can it hurt? If you press it a little even if it is tight, does it have anything? Excuse my English, Merry Christmas everyone!

Donn Chambers · Dec 24, 2021

1) No, you can’t overwind it. There is a mechanism to prevent this.

2) It can take quite a few winds to get the movement going from a dead stop. 50 full winds seems a little much from my experience with this movement, but I suspect you are not counting “full” (I.e., 360 degree rotations) winds, but only partial ones. As long as it starts and stays wound when wearing and keeps reasonable time, I would not worry.

3) sorry, can’t quite understand what you are asking here. Is it about screwing down the crown? You do have to be careful here not to be too forceful here, or you can strip the threads. It should thread easily. Sometimes you have to rotate backwards while applying a little force inward to get the threads to connect, then you can rotate it CW to lock.

Cosmin Robert · Dec 24, 2021

Thanks! Yes, I did refer to screwing down the crown. You're right, I rotated the crown a maximum of 180 degrees, not 360. I thought I wasn't allowed 360 degrees. So I understand that I can rotate 360 degrees? And so should it start faster if I turn to 360? When turned on, it keeps its time well and its power reserve for 44 hours.

Donn Chambers · Dec 24, 2021

Cosmin Robert
Thanks! Yes, I did refer to screwing down the crown. You're right, I rotated the crown a maximum of 180 degrees, not 360. I thought I wasn't allowed 360 degrees. So I understand that I can rotate 360 degrees? And so should it start faster if I turn to 360? When turned on, it keeps its time well and its power reserve for 44 hours.

The crown is meant to rotate fully, so it doesn’t matter if you rotate it 360, 180, 90, 45, or even 5 degrees. It will just take longer to wind if you don’t use the full available motion. So your 50 half-winds are 25 full winds, which is what I would expect to see the hand starting to move.

Cosmin Robert · Dec 24, 2021

Thank you very much for your help! 😀

Jerseyhammer · Dec 31, 2021

Donn Chambers
1) No, you can’t overwind it. There is a mechanism to prevent this.

2) It can take quite a few winds to get the movement going from a dead stop. 50 full winds seems a little much from my experience with this movement, but I suspect you are not counting “full” (I.e., 360 degree rotations) winds, but only partial ones. As long as it starts and stays wound when wearing and keeps reasonable time, I would not worry.

3) sorry, can’t quite understand what you are asking here. Is it about screwing down the crown? You do have to be careful here not to be too forceful here, or you can strip the threads. It should thread easily. Sometimes you have to rotate backwards while applying a little force inward to get the threads to connect, then you can rotate it CW to lock.

Enjoy and wear in good health

My first Omega Seamaster ( 2551.80 )

Cosmin Robert

Donn Chambers

Cosmin Robert

Donn Chambers

Cosmin Robert

Jerseyhammer

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