Last weekend, I decided to do a badly needed COA on a 2414 movement. The trouble is, there is no service info available anywhere that I can find. The articles submitted by Marc_wl were very helpful, but I decided to fully disassemble the movements. So, for safety's sake, I documented the disassembly using the camera.
The next challenge was (of course) the assembly, what to oil, which oil to use, and how much. Again, there are no guidelines.
What I did was to find data sheets on other movements. I used info available from ETA and Seiko, and took what I learned in the Time Zone Watch School course 1 and 2, and made an educated guess as to what would work for the Vostok.
After all that, I printed up my notes, and did a COA on another 2414 movement. All in all, using the different junk that seems to accumulate, I was able to to take 3 broken or barely running movements and build 2 that run well.
It occurred to me that this is a resource that I can share, so here goes. What I ask is that those of you who have watchmaking experience, please critique my choices of assembly, cleaning, and lubrication. If you have any suggestions for different choices that I could have made, please let me know about it. Also, those of you in the know about watch innards, I tried to name each part. If you can think of a better name for a part that is more accurate, descriptive, or conventional, please let me know.
Also please note, the oils that I used were chosen because they were on hand from my TZWS toolkit, for use in Swiss watches. Your choice of oils may be different depending on what is available in your area.
For those of you without watchmaking experience, please note that what follows is not a tutorial. These are just my notes, and some visual reminders of what goes where. I do not discuss technique in this article. I would encourage fans of Russian watches to get some formal instruction before attempting this.
Boctok caliber 2414
Remove 2 screws and Movement Spacer
Remove 2 Dial Screws (not seen in this photo)
Remove Calendar Jumper Spring
Remove 3 screws and Calendar cover plate
These are Flat head screws
1.) Calendar Jumper
5.)intermediate calendar wheel
6.)screw and Calendar wheel
7.)Calendar cam (under the calendar wheel)
8.)screw and Calendar cam spring (under the date ring)
3 screws and Keyless Cover
These are Cheese head screws
3.)setting yoke spring
Remove Cannon Pinion using a pin vise [edit--NEG suggests using a cannon pinion puller instead of the pin vise]
Note: use tool made from pegwood
1.)The other shock assembly
2.)Screw, click, and click spring underneath
3.)screw and ratchet wheel
4.)Left Hand screw and crown wheel
5.)screw and seconds hand pinion end spring
6.)2 screws and wheel train bridge
1.)Seconds hand pinion
4.)3 screws and winding bridge
3.)stem release button
5.)1 screw and balance assembly
Note: 6 screws (3-winding bridge, 2-train bridge, 1-balance cock) are identical
1.) 1 screw and pallet lever bridge
2.) pallet lever
Cleaning and Oiling notes
Cleaned in ultrasonic cleaner, in 3 beakers.
Cleaning: 2 cycles in L&R Extra Fine Watch Cleaning Solution
First Rinse: 1 cycle in L&R Ultrasonic Watch Rinsing Solution
Final Rinse: 1 cycle in L&R Ultrasonic Watch Rinsing Solution
1 load: Entire keyless, setting, and calendar works EXCEPT day ring
1 Load: Motion works
1 load; all plates and bridges
1 load: Balance assembly, alone
After final rinse:
Balance assembly, balance pierced and cap jewels, shock assemblies rinsed in “One Dip” hairspring cleaner.
Moebius 9010 on low-load jeweled pivots
Moebius 9020 on medium-load jeweled pivots
Moebius D-5 on high-load jeweled pivots
Moebius 9415 on pallet stones
Moebius 8141 in the mainspring barrel
PML Stem Grease for metal-to-metal sliding contact
Using the black oiler,
Light = dipped to a depth 1/3 of the oiler’s width.
Medium= dipped to a depth 2/3 of the oiler’s width.
Heavy= dipped to a depth equal to the oiler’s width.
Unless noted, use light to medium oiling on the black oiler.
Boctok 2414 Assembly and Oiling
Arbor to Mainspring using pin vise (inset)
Wind spring into barrel
Barrel floor, 8141, yellow oiler medium-heavy
Mainspring coils, 8141, yellow oiler, medium heavy
Barrel arbor, D5, (both sides) (inset)
Pallet lever bridge and 1 screw
Pallet lever pivots, 9010, very light or none at all. (both sides) [edit--lysanderxiii suggests no lubrication here.]
Identification of wheels:
Mainspring Barrel (inset)
Center Wheel (inset)
The Stem Release Button! (inset)
Winding Bridge and 3 screws
Center wheel jewels, D-5, (both sides)
Barrel Arbors, D-5 heavy, both sides
Wheel train Bridge and 2 screws (inset)
Escape wheel pivots 9010 both sides
4th wheel pivots 9010 both sides
3rd wheel pivots 9020 both sides
Seconds hand pinion
bearing surface, underside of seconds hand pinion spring, D-5
surface under click, 9010
seconds hand pinion spring and 1 screw
ratchet wheel and 1 screw
click and 1 screw
click post 9010
crown wheel post D-5
crown wheel bushing D-5
Left hand screw to crown wheel
Flip to the dial side of the movement.
Lubricate pallet stones, Light 9415, on impulse surfaces only. Access is through the 2 rectangular holes.
balance assembly, 1 screw
Lubricate cap jewel, medium heavy, to cover 1/2 to 2/3 of cap jewel (inset)
Assemble pierced jewel to cap jewel
assemble shock assemblies with pegwood tool.
At this point, movement should run. Put a screwdriver in the screw holding the ratchet wheel, and wind.
Stem pivot, PML
Stem clutch square, PML
Stem set lever notch, PML
Stem shoulder, PML
Sliding Clutch Pinion
Sliding Clutch pinion slot, PML
Sliding Clutch pinion Breguet teeth, PML
Winding Pinion Breguet teeth, PML
Seconds hand pinion, 9010
Center wheel post, PML [edit--NEG suggests D5 here]
Install Cannon pinion using pin vise
Lubricate with PML:
Stem Release button
Post for setting yoke
Post for minute wheel
Post for setting wheel
setting yoke spring
Lubricate with PML:
"heel" of setting yoke
post on setting lever
side of setting lever where keyless cover springs against it
edge of setting lever where it touches the setting yoke
Keyless cover and 3 screws. (inset)
note: hook the cover spring on to the post on the setting lever
Lubricate outside of Cannon pinion, D-5 [edit--NEG suggests 9020 here]
Lubricate with PML:
post for intermediate calendar wheel
under calendar cam
post for date ring jumper
Dial Foil (not shown)
intermediate calendar wheel
date ring jumper
Lubricate with PML:
top of calendar wheel
hub+shoulder of calendar wheel screw
date wheel jumper
calendar wheel with 1 screw
calendar cam spring and 1 screw
2 or 3 teeth of the date ring, PML
Calendar cover and 3 screws
calendar jumper spring
put a dial and hands on, and see how it runs...