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How Far Have Sec@12 Movements Come

slaughterer62

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The Asian factories sometimes put little gold washers on gear C to cover up their guilt at not putting jewel in the bridge for this gear. Gear C is the gear your small seconds hand rides on, and (along with D, E and two other gears underneath this bridge you do not see) is constantly turning when the watch is operating. Having a gear ride in a jewel is better than having it ride on the metal bridge: reduces wear and tear, reduces friction. The power output of your A7750 is constantly pushing these five gears for the seconds output, and a few gears for the hour and minutes output. The seconds output sucks a lot of energy out of the movement because of the number of gears in the transfer system that the seconds output has to go through and their construction. Imrpoving construction and reducing friction and wear in this system is desirable from power reserve perspective but also from wear and tear perspective. Metal on metal typical results in faster gear wear. ETA does not manufacture a gear C for replacement, as this gear C is a fully new Asian innovation. Once gear C breaks, your rep movement is useless. But (and this is the point of my first post on this thread), other things can break as well, not just the transfer system.
 

SSTEEL

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Rep added to Slaughter and valance's ?contributions, awesome info.
 

slaughterer62

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Thanks, I appreciate the rep points. Valante's posts are great because they show you what we are talking about. Otherwise I might sound like an asshat trapped in my own private world without external object.
 

BuddhistGirafe

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Thanks, I appreciate the rep points. Valante's posts are great because they show you what we are talking about. Otherwise I might sound like an asshat trapped in my own private world without external object.
You mean you aren't? I thought you just sat in a bubble playing with movements
 

slaughterer62

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heh heh, best laugh I got all day, thanks buddhistGirafe, now I really have to go outside and enjoy the weather.
 

BuddhistGirafe

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Well, I don't quite have the knowledge you do but at least I can provide a laugh. Thanks once again!
 

valante

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The Asian factories sometimes put little gold washers on gear C to cover up their guilt at not putting jewel in the bridge for this gear. Gear C is the gear your small seconds hand rides on, and (along with D, E and two other gears underneath this bridge you do not see) is constantly turning when the watch is operating. Having a gear ride in a jewel is better than having it ride on the metal bridge: reduces wear and tear, reduces friction. The power output of your A7750 is constantly pushing these five gears for the seconds output, and a few gears for the hour and minutes output. The seconds output sucks a lot of energy out of the movement because of the number of gears in the transfer system that the seconds output has to go through and their construction. Imrpoving construction and reducing friction and wear in this system is desirable from power reserve perspective but also from wear and tear perspective. Metal on metal typical results in faster gear wear. ETA does not manufacture a gear C for replacement, as this gear C is a fully new Asian innovation. Once gear C breaks, your rep movement is useless. But (and this is the point of my first post on this thread), other things can break as well, not just the transfer system.

i dont know how? but you make it sound so melodious.

The explenations is so nice and easy to understand, i cant explain it as good as you. :)

Thx for all of the points guys.
 

valante

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Take the plunge Budhistgirafe!

when something goes bad, you know your mates will take care of you.
 

valante

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no i dont own rep panda since i got the gen one.

TD Sold out?

but you have to put money aside for OEM Hornback if you get panda.

The rep strap is a rat skin.

OOps sorry bimmer said its confirmed a cat scrotum skin.
 

BuddhistGirafe

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Not sure about TDs. I have sent a few messages this morning so I am hoping to hear back in the coming days. And yeah I have that planned out as well. I think BMW has ruined me into wanting to only use OEMs now, I will be in contact with some ADs once I establish if I can get the Panda, if not I will stick to just the Buemi
 

chris3007

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Great posts here. Thanks S. and V.
All i can say about the a7750 after i worked on it....this movement is a b..ch!



send from my iPhone
 

valante

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Not sure about TDs. I have sent a few messages this morning so I am hoping to hear back in the coming days. And yeah I have that planned out as well. I think BMW has ruined me into wanting to only use OEMs now, I will be in contact with some ADs once I establish if I can get the Panda, if not I will stick to just the Buemi

shoot ryan or toro emails, i deal with them with no issue.

bimmer is right on the OEM's, it just so nice....

for your first, i will suggest the panda wayy more than the buemi,

the panda is so iconic, that people can recognize it from far away.
it have all of the AP genetic, the arabic number and square pattern.
 

BuddhistGirafe

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shoot ryan or toro emails, i deal with them with no issue.

bimmer is right on the OEM's, it just so nice....

for your first, i will suggest the panda wayy more than the buemi,

the panda is so iconic, that people can recognize it from far away.
it have all of the AP genetic, the arabic number and square pattern.

Yeah that is what my gut is telling me too. Soo many people see that as one of their favourite ROOs. I really like it on the bracelet too though. I have dealt with Ryan on numerous occasions and he has always been great. Hoping to deal with him for this guy!
 

chris3007

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lucky you to have access to the magician.....

Yes but its not very magic if you still have this part at the desk after assembled the movement

uvegu6ed.jpg



send from my iPhone
 

jcagara08

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arrrgh that NERDY watch conversations you guys did just made me came in my pants,
Damn you guys are like living in valle de joux, sa.
How do I acquire such technical timepiece mecha knowledge?
I bet my shaky hands won't be able to do such things....
 

valante

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Panda can take enormous strap variations.

gen comes with HB with white stiching,

some use HB with red stiching like bimmer,

i use Sing GP strap, which peforated racing hole.

bracelet etc,
 

BuddhistGirafe

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Panda can take enormous strap variations.

gen comes with HB with white stiching,

some use HB with red stiching like bimmer,

i use Sing GP strap, which peforated racing hole.

bracelet etc,

The GP alcantara lined one?