Internet Horology Club 185
Elgin 3F Bridge Close-up Details G#280, 270 &156

This topic can be found at:
https://ihc185.infopop.cc/eve/forums/a/tpc/f/1086047761/m/2991046422

December 30, 2006, 11:38
Sean Plummer
Elgin 3F Bridge Close-up Details G#280, 270 &156
I have decided to document the following movements internal details, focusing on the actual finish quality of the follow Elgin movements from the 10 million production range. the grades are #280, #270 and #156.

I hope to show the following from each movement:
Winding wheels
Barrel
Train wheels
Escape wheel
Train jewel settings
Cap jewel settings
Pallet Jewels
Pallet
Roller table
Regulator
Top Plate finish
setting componet finish
Screw heads

-Sean
December 30, 2006, 11:43
Sean Plummer
The first movement is the Grade #280 (Marked BWR)
S#10,855,402
Winding Wheels- show snailing and damaskeening type of finish, pretty nice but not the best from Elgin.


December 30, 2006, 11:47
Sean Plummer
Main Spring Barrel- Typical medium finish with some snailing


December 30, 2006, 11:50
Sean Plummer
Train Wheels- All Gold wheels with rounded spokes, pretty nice detail, but not realy high polish. shown L to R; Third, Center and 4th wheels.


December 30, 2006, 11:55
Sean Plummer
Train Bridge Jewels and Settings- All Gold flush settings showing good polish, but only Pale red ruby jewels,


December 30, 2006, 11:58
Sean Plummer
Balance Cock- Flush Gold cap jewel, showing good polish. Note: Nice regulator as found on the highest Grade Elgin Watches.


December 30, 2006, 12:02
Sean Plummer
Escape Wheel and Pallet- Highly finished Double roller pallet and steel escape wheel. medium finish on the pallet bridge. Nice pale blue sapphire pallets jewels.


December 30, 2006, 12:06
Sean Plummer
Balance and Hair Spring- High quality bi-metalic balance with gold screws, and Breguet Hair spring in blue steel.


December 30, 2006, 12:08
Sean Plummer
Balance and Roller- Nice quality steel polished Double roller table and D-type ruby roller jewel.


December 30, 2006, 12:16
Sean Plummer
Top plate train side- The finishing is nickel with both spotting, snailing and damaskeening, Note: the gear pockets are spotting finished and the other surfaces are snailed with some damaskeening


December 30, 2006, 12:19
Sean Plummer
Top plate dial side- Minimal finish on this surface, also the setting components are not polished. Pretty basic here, not much better than the average 15 jewel grade.


December 30, 2006, 12:22
Sean Plummer
Screw Heads- The polished screw heads are average Elgin type, as found on most nickel grades.


December 30, 2006, 12:31
Sean Plummer
Here is the assembled Grade # 280 (Marked BWR)- Please note this movement is not pristine, showing scratches from poor service technique and oxidation on some of the steel parts.

In summary, this is a High Grade 17 jewel Elgin movement, featuring many of the higher quality finishing details offered by Elgin. However, the dial side top plate is not finished well, the ruby jewels are Lite pink, Gold setting are flush and the screw heads are average.


December 30, 2006, 13:39
Tony Dukes
Sean,
Thanks for the outstanding pics of the Elgin grade 280 movement.
Tony
December 30, 2006, 16:41
Lindell V. Riddle

Breathtaking detail Sean, even the threads on your balance wheel screws are crisp and clear!

We're looking forward to more in this topic. Big Grin

Wink

December 30, 2006, 18:53
Sean Plummer
Here is a final shot of the 280/BWR using a point source light to highlight the damaskeening of the movement.


December 30, 2006, 20:21
Samie L. Smith
Sean
great pictures and a great watch thanks for showing it. Smile
December 30, 2006, 22:12
Sean Plummer
I am using a Canon Power Shot SD450 on a tripod with an MK Digital Photo Box.

Here is a pic.


December 30, 2006, 22:13
Sean Plummer
Here is a my bench.


December 30, 2006, 22:15
Sean Plummer
Here is my B200A Vibrograf.


December 30, 2006, 22:16
Sean Plummer
Here is my 4 station automatic Ultrasonic Cleaner


December 30, 2006, 22:18
Sean Plummer
Back to business, here is the grade 270 disassembled, and put into the cleaning basket partitions. Ready to be cleaned...


December 30, 2006, 23:52
John Scott
Sean

Keep going! Wonderful stuff.

I like the clever movement holder you have, by the way.

John Scott
December 31, 2006, 14:07
Clyde Roper
Thanks, Sean. Great set-up! Smile
December 31, 2006, 15:23
Ron Birchall
I am really enjoying this Sean
..... and thanks for showing your photography setup! Cool

Ron
December 31, 2006, 20:33
Michael Boone
Sean,

Great job with the photos! Thanks for bring us into your home and showing us your set up.

From a novices view point you seem to learn so much more when you go step by step with great photos to accompany the explanation.

Mike
January 07, 2007, 16:29
Sean Plummer
Here are the pics of the Elgin Grade 270 S#10,814,988

Winding Wheels- show snailing and damaskeening type of finish, seems pretty similar to the G#280/BWR, but not the best from Elgin.


January 07, 2007, 16:31
Sean Plummer
G#270 Main Spring Barrel- seems a little better than the G#280/BWR, medium finish with some snailing.


January 07, 2007, 16:33
Sean Plummer
G#270 Train Wheels- All Gold wheels with Polished rounded spokes, very nice detail, Better than the G#280/BWR. shown L to R; Third, Center and 4th wheels.


January 07, 2007, 16:36
Sean Plummer
G#270 Train Bridge Jewels and Settings- All Gold flush settings showing good polish, nice red ruby jewels. Notice nice damaskeening, and better engraving than the G#280/BWR.


January 07, 2007, 16:38
Sean Plummer
G#270 Balance Cock- Flush Gold cap jewel, showing good polish. Note: Nicer engraving than the G#280/BWR.


January 07, 2007, 16:42
Sean Plummer
G#270 Escape Wheel and Pallet- Highly finished SINGLE roller pallet, Ruby pallet jewels and steel escape wheel. Nice Gold cap jewel setting on the pallet bridge. Note: This 21 jewel movement only has a Single roller escapement.


January 07, 2007, 16:45
Sean Plummer
G#270 Balance and Hair Spring- High quality bi-metalic balance with gold screws, and Breguet Hair spring in blue steel. Pretty much identical to the G#280/BWR.