Pocket Watches
The start of watchmaking in the miniaturized form we have today was pocket watches. We have several movement designs in our collection: One is the modern Lever Escapement, and second is the older generation Cylinder Escapement. It would take a while until each watch is studied, and explained in detail. Here are a few of our pocket watches.
a
Modern Lever Escapement
Vintage Cylinder Escapement
Modern Escapement: j = Balance Pinion, h = Roller with notch, k = Lever Pivot, a = Pallet Wheel, b = Pallet Wheel Gear, p = Pallet Stone
The force that runs a watch originates from the main drive spring (not shown). This is the spring that is wound by hand every day. The rotational force from the main drive spring passes through many reduction gears to finally reach the Pallet Wheel gear "b", above. The pendulum in a watch is called the balance wheel. This wheel (not shown, riding on Balance Pinion "j") is driven by the pallet wheel gear, and produces the back and forth motion you'll first notice when you open a watch case to see the inside. The back and forth motion of this wheel drives the Lever Escapement (left), and the Cylinder Escapement (right) to advance the Pallet Wheel "a" one tooth at a time.
W2: Hampden Locomotive watch, with modern pallet escapement.
W8: Eclipse, New York an example of Pallet escapement
W9: Revida, an example of pallet escapement with Spiral Compensateur. For inside movement, see below.
W10: Chronometer (above), is an example of cylinder escapement, with an interesting layout of jewels (see below)
W7: Viking Watch with lever escapement, W13 Cuivre with pallet escapement
W5: Molnia Russian made watch, W11: Cylinder Movement Watch
W5: Molina Watch (L), W11: Cylinder Watch Movement (R)
Inside Movement of W7 (L), and Molina W5 (R)
Inside Movement of W10 (L), and Revida W9 (R)
Inside Movement of W12 (L), and W6 (R)
W3: Roscopf Swiss Made Watch, W4: Fariba Watch, both with lever escapement
W14: Cylinder Watch Movement (L) , W15: Seiko Swiss Made Movement (R) with lever escapement, and Calender
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Inside Movement of W8 (L), and Roscopf W3 (R)
Inside Movement of W12 (L), W11, W14 (R)