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- 1,980
Omega Bumper Automatics Show Yours
- Posts
- 213
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- 903
Jantar
·
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- 2,218
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- 28,910
Ludi
·354 bumper
Edited:
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Rasputin
·
- Posts
- 3,727
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- 6,322
hoipolloi
·352's
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- 281
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- 935
NYCwatchgal
·
Love your collection!
- Posts
- 281
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- 935
- Posts
- 290
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- 544
Snowman
·Jumbo seamaster chronometer 354 movement
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- 370
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- 316
AJwala
·Hi. Apologies for my ignorance, what do you mean by Omega bumpers? Which Model are these?
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rolokr
·Hi. Apologies for my ignorance, what do you mean by Omega bumpers? Which Model are these?
Has a section of the movement the go back and forth bumping back and forth to wind the movement. When you wear the watch you can actually feel a slight bumping action of the movement !
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Tony C.
··Ωf Jury memberIt's an automatic movement with no rotor.
Has a section of the movement the go back and forth bumping back and forth to wind the movement. When you wear the watch you can actually feel a slight bumping action of the movement !
No...they have rotors, but they don't rotate 360°. This was because Rolex had patented the full-rotor automatic, and other manufacturers had to wait for the patent to expire. The work-around was to create a modified movement.
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- 370
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AJwala
·It's an automatic movement with no rotor.
Has a section of the movement the go back and forth bumping back and forth to wind the movement. When you wear the watch you can actually feel a slight bumping action of the movement !
Wow .Interesting, so you don't have to wind it? It's just like automatic watch?
- Posts
- 370
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- 316
AJwala
·No...they have rotors, but they don't rotate 360°. This was because Rolex had patented the full-rotor automatic, and other manufacturers had to wait for the patent to expire. The work-around was to create a modified movement.
Thank you for this information. This is a piece of history I didn't know. When did they patent automatic movement and when did the patent expire?
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- 370
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- 316
- Posts
- 618
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cgaites
·Here’s mine. First vintage Omega of any kind.
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- 7,994
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- 28,029
Tony C.
··Ωf Jury memberWow .Interesting, so you don't have to wind it? It's just like automatic watch?
Correct. The notable disadvantages is that full-rotors are more efficient, and can bear more (rotor) weight.
Thank you for this information. This is a piece of history I didn't know. When did they patent automatic movement and when did the patent expire?
Began in 1931, expired sometime in the early/mid '50s.
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- Posts
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- 316
- Posts
- 7,800
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cristos71
·Looking through my pictures I now realise I'm a bumper collector!
352's
354's
352's
354's
- Posts
- 290
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- 544
Snowman
·1950 351 bumper automatic
- Posts
- 290
- Likes
- 544
Snowman
·1954 354 seamaster
