PART 1: ETA 2801 Movement Disassembly

[cybee]

Reposted from RWC.

Here a few Pics of the ETA 2801-1 movement, with part names. It is basically the same plate as the 2824 and 2836 except it is a manual wind, without the winding bridge, rotor, and calendar functions. Scroll back between parts and previous photo to see location of part removed.

Dial side showing: Hour Wheel and dial washer (foil), motion works, and keyless works.

motion works cover-cover screw-minute wheel-combined canon pinion and drive wheel.

KEYLESS WORKS:

cover screw-keyless works cover-clutch return lever-set lever-intermediate wheel-switching lever-clutch-winding pinion.

Dial Side of Plate:

Balance Assembly on the left:

Balance Assembly and screw:

Pallet Bridge:

Pallet Bridge and 2 screws-Pallet Lever

Wheel Train Bridge:

Removing the Wheel Train Bridge and 2 screws:

With Wheel Train Bridge off good view of the train:

notice how: 5. Ratchet Wheel turns 2. the Barrel which turns 1. the pinion of the main wheel which turns the Third Wheel which turns 3. the Fourth Wheel and then 4. the Escape Wheel.

Ratchet Wheel removed exposing the click spring on the left and the click next to it.

Ratchet Wheel screw-Ratchet Wheel-Click Spring-Click.

Next remove Crown Wheel and Barrel Bridge:

Crown Wheel screw-Bushing-Crown Wheel-Barrel Bridge screw-Barrel Bridge-Barrel (barrel houses the mainspring)

Photo of the Wheel Train:
Wheel Train Bridge and 2 screws-main or center wheel-3rd wheel-4th wheel-escape wheel

Here is a pic of the main wheel or called the center wheel. The barrel drives the small pinion on the center wheel.

2801 Plate:

Thanks for viewing.

 

[horologie_unitas]

you are really getting there....i think you are doing a great job, love the pictures. - and i envy you for the skills you developed !

WE NEED A SERVICING CONNECTION IN THE SF -AREA !!

CYBEE- YOU ARE OUR MAN !

 

[TicToc]

WE NEED A SERVICING CONNECTION IN THE SF -AREA !!

That would too cool !
Need any watches to practice on Cybee?

 

[cybee]

Ha thanks for the vote of confidence H_U and TT, I'm just a beginner sharing a little info as I learn...but always thought a DIY Eta repair section would be kinda cool to have here on the forum where everyone could share the repairs they have made or tried to make.

 

[flyby75]

Thanks.....Looks great !

 

[hpy540]

Keyless repair

i wish the pic of the keyless was more "in focus. "

 

[jcrry2]

great tutorial. I always have a problem putting the pallet lever back in place with the escape wheel and getting it in the correct spot.

 

[hpy540]

Ok, I fixed the Keyless works but now i have two other pieces on the same side of movement that popped out( opposit side of movement and under datewheel) . Not is pics here. can soemone point me in the right direction? 2836 real ETA suposidly. and the shape on the teeth look crrect so i would say it is the real deal.

 

[hpy540]

I need to look at a date changer assembly. I think i have it together correct but i need to see one before i put datewheel back on.

 

[cybee]

I need to look at a date changer assembly. I think i have it together correct but i need to see one before i put datewheel back on.

Here is a pic. Make sure the spring ( located next to # 29) is locked between the teeth on the date wheel.

 

[cybee]

Wow this is when I could actually see what I was doing.

Big Fat Bumparooski