This seems like pretty humble origins for what the Hamilton Company was to become. I would like to see some other Lancaster watches, though, if someone could post them.
Posts: 827 | Location: Bloomington, Illinois in the USA | Registered: September 29, 2008
"Now ya Done it", I remembered I had a couple of these "Dustproof" things, so after about an hour of rummage I found 1 and it is trying to run! So, mebbe I can do a pictorial restoration . . .
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007
The SPL of a Steam Locomotive was about 80 - 100 dBa. At 15 PSI, 100 dBa of 20 Hz sound is about a 50% SPL shockwave or about 7.5 PSI. With that "pumping" both the front and back covers of an engineers watch in a Locomotive cab, it is Gonna Get Dirty just by breathing volumes of air and coal dust and other crud through the winding stem.
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007
Well . . Tonight I got this disassembly going of the "Dustproof" Keystone.
When Steve posted his pictures of the "Dustproof", he mused; "I suppose the Aurora Company has as much claim as Lancaster, but neither of them resemble the later Hamiltons at all."
Steve, there are a couple common points with this to the Hamiltons after all. First . . . The Dust Ring is Fully Machined the same as Hamiltons were. This is quite unique to these watches as most dust rings were cheaper stamped and rolled method parts . . .
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007
The other most obvious "signature" part of the family to become "Hamilton" is the Pallet Bridge (or "cock") which is a full circle ring, quite uniquely Keystone/Lancaster/Hamilton . . .
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007
Swing out Dust Cap for the Balance wheel has a Cold Solderd in Mica "Window', Cute, Expensive and fundamentally a waste of money except to advertise it is there.
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007
As the Pallet Staff is Not Jeweled, this is a ten (10) Jewel movement, with 1 Roller Pin, 2 Balance staff Pivots, 2 Balance Staff Caps, two Pallet Stones, and 3 pressed in "Swiss" friction Jewels (mostly for show).
That said, it still has 4 Mean Time Screws!
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007
This is a fascinating analysis of the general, and personal character of this watch. I think you should publish a weekly column like this and take a different watch apart each week. It could be like the Tappit Brothers on the radio!
Steve G.
Posts: 827 | Location: Bloomington, Illinois in the USA | Registered: September 29, 2008
Firstly, more odd notes, a three-piece "SCREW-TOGETHER" Pallet Fork!(first one for me that actually used a screw!)
Then there is the strange Balance Cock Regulator that is actually "just like the pictures" in the Patent! Ugly and complicated!
In re-assembly, the wheel train turns out to actually be a 16 size. About the only "big part" is the motor.
Oddly in this watch it is safer to place and assemble the Pallet Fork/Bridge set before putting down the top plate!
All in all, I would bet that there were many watch makers who charge a premium cleaning fee for the Keystone "dustless! It takes about twice the time as "normal".
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007
On the "wind and set side" it is completely different from any other I have seen, and easier to reassemble. It uses a very unique "Teeter-Totter" rocking bar mounted transfer wheel to engage the time setting.
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007
Steve and Jerry, I agree, it turned out beautifully and will remain with my personal "stash" as representative of that phase of watch evolution. A watch that had all the disadvantages of an early full plate movement including full disassembly to replace the mainspring. Plus added design features that made the "3/4 plate" design laborious and hazardous to service. That must explain the short life of this particular watch movement.
All that said, it keeps darn good time and is reeeeeel purdy!
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007