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RCAFBuster
·The wonderfully Rare Omega 2221.
Buster
Buster
Pretty movements anyone?
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Faz
·
Nice!
Can you tell us what Omega modifications were made to the base Lemania caliber?
Cheers,
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RCAFBuster
·I'm not sure of all refinements but the 6 pillar column wheel for single pusher operation, and Hacking feature.
Buster
Buster
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Mad Dog
·Wowser!
Very nice looking movements pictured here!
Below are some pics from today of the movement [L674.4 / ETA 7750] of my Longines Hour Angle re-edition that I purchased new in 1996...
Very nice looking movements pictured here!
Below are some pics from today of the movement [L674.4 / ETA 7750] of my Longines Hour Angle re-edition that I purchased new in 1996...
Edited:
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Faz
·I'm not sure of all refinements but the 6 pillar column wheel for single pusher operation, and Hacking feature.
Buster
Thanks Buster..One more question if I may..
I noticed that the Venus 175 has a 5 pillar column wheel?! What makes the single pusher operation work on the Rodania version compared to the 6 pillar colun wheel of the Omega 2221?
Thanks in advance
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RCAFBuster
·I hadn't given this one any thought until you've pointed it out.
I've viewed my Chrono photos and all Venus 175 single pushers had 5 pillars, whereas their twin pusher has 7.
The Omega and Breitlings have 6 pillar. While I understand the basics of the movement operation, maybe one of our resident watchmakers can explain how the 5 and 6 pillar are good for single pusher operations, with twin pushers requiring more columns?
Cheers,
Buster
I've viewed my Chrono photos and all Venus 175 single pushers had 5 pillars, whereas their twin pusher has 7.
The Omega and Breitlings have 6 pillar. While I understand the basics of the movement operation, maybe one of our resident watchmakers can explain how the 5 and 6 pillar are good for single pusher operations, with twin pushers requiring more columns?
Cheers,
Buster
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Faz
·Paging Mr. Jenskey?
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RCAFBuster
·Suffice it to say, the single pushers of each brand have 2 pillars less than their twin pusher counterparts. Venus 5 and 7, Omega 6 and 8.
Buster
Buster
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Alpha
··Kilt Owner, Beagle Parent, Omega CollectorSomething old -
Something new -
Something new -
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Andreas
·
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DirtyDozen12
··Thanks, mystery donor!I hadn't given this one any thought until you've pointed it out.
I've viewed my Chrono photos and all Venus 175 single pushers had 5 pillars, whereas their twin pusher has 7.
The Omega and Breitlings have 6 pillar. While I understand the basics of the movement operation, maybe one of our resident watchmakers can explain how the 5 and 6 pillar are good for single pusher operations, with twin pushers requiring more columns?
Cheers,
Buster
In a conventional 2 pusher chronograph, the column wheel only coordinates the start and stop operations, not the reset operation. This means that the various levers associated with starting and stopping go from engaged (between 2 columns) to disengaged (resting against a column) with each depression of the start/stop pusher. The resetting operation is independent of the column wheel hence the danger of resetting while the chronograph is running.
In a monopusher however, all operations (start, stop, and reset) are coordinated by the column wheel. Since monopusher chronographs are capable of 3 distinct operations (start, stop, and reset), all of the various levers cannot simply engage and then disengage with each depression of the single pusher. Any given lever that is presently engaged with the column wheel, will only re-engage after 3 depressions of the single pusher. This means that wider columns are needed for levers to remain disengaged after a second depression of the single pusher.
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BartH
·
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DirtyDozen12
··Thanks, mystery donor!
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timjohn
·JLC P478/BWSbr
And a 135 shot that doesn't show the striping properly🤦
And a 135 shot that doesn't show the striping properly🤦
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Interstatetime
·I love this thread!
JohnCote
JohnCote
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Canuck
·
Elgin B W Raymond, 18-size, grade 240, 19-jewels, first run, circa 1900, railroad grade but not railroad approved (wrong dial and hands ,though original to the watch). My wife's great grandfather was a sergeant in the Union Army during the Civil War. Later, he became a sheriff in Paducah County, Kentucky, then later a farmer in Kansas by which time he was married, and they had kids. His wife lived in mortal dread of tornados, so they moved to Washington Territory before it became a state in 1889. He farmed at Spangle, Washington, which is south of Spokane. He did very well, eventually opening a hardware store in Spangle at which time he bought this watch.
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Archer
··Omega Qualified WatchmakerI have watched your video of this movement many times at 0.25 speed, in awe of the flyback operation. Thank you for uploading it!
You are welcome...although this thread is for photos, I hope no one will mind a video...
Cheers, Al
