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Bulletin |
of the
NATIONAL ASSOCIATION of
WATCH & CLOCK
COLLECTORS, Inc.
Since 1943
December 2006 Volume 48/6 Number 365 |
Contents This issue's online featured article is: Reversing
Westernization on a Japanese Lantern Clock
ARTICLES
The Black Forest Cuckoo Clock—A Success Story
by Dr. Johannes Graf |
646 |
Asian Timekeeping: The Development of Time
Measurement in China and Japan
by Bernard P. Stoltie |
653 |
Reversing Westernization on a Japanese Lantern
Clock
by Craig White |
663 |
Restoring Dials with Rub-On Decal Material
by Jonathan Weber |
667 |
An Unusual Bulle Clock
by Mel Kaye |
676 |
Carriage Clock Dials: A Close and Careful Look
by Thomas R. Wotruba |
677 |
Identifying Fake, Vintage Ulysse Nardin
Watches
by Eric Clay |
692 |
Expressions of Time
by Mark B. McKinley |
695 |
To Bush or Not to Bush—A Very Important
Question
by Steve Nelson |
698 |
The Pendulum and its Length (Part 1)
by Bruce J. Lenton |
701 |
In Memoriam—Beresford Hutchinson
by Jonathan Betts |
723 |
Features
The 2006 NAWCC Crafts Contest
by Jerry Thornsberry |
643 |
| Convention and Symposium Schedule |
666 |
Practical Restoration—“Part 3: Faking, A
Restoration Technique”
by Tom Temple |
671 |
| The National Watch and Clock Museum by Sharon
Gordon |
694 |
| Obituaries |
706 |
From the Workshop—“The Hamilton Series XXI
Marine Chronometer”
by Doug Sinclair |
707 |
Wristwatches—“Favre-Leuba Pioneers
Altimeter/Depth Watches”
by Bruce Shawkey |
714 |
| Horologica |
717 |
| Vox Temporis—Letters to the Editor |
720 |
| Research Activities and News edited by Snowden
Taylor |
725 |
| The Answer Box edited by Doug Cowan
|
738 |
| Call for Board Appointment
Nominations |
741 |
| Perspective—“What the NAWCC Means to Me” by
Roger Dankert |
742 |
| Chapter Highlights |
743 |
| Chapter Officers |
765 |
| NAWCC Staff and Committees |
768 |
| Dates to Remember |
Cover 3 |
 About the Cover
The front cover and part of the back cover of this issue feature Boris
Vojvodich’s 2006 Crafts Contest entry, which won first place in the
Class 1 Single-Train Clock Movement category. The front images include a
view of the entire gold-plated brass dial, featuring a hand-shaved
pattern on the silver-plated dial insert. A closeup of the seconds dial
is shown on the back cover, including the clock’s titanium escape wheel
and jeweled pallet. The jewels are a radial design and can be easily
adjusted with a back set screw. The front cover shows a view of the
entire movement, but with the rocker plate removed to show jewels and
the supporting plate. Other movement features include heat-treated and
burnished pinions, high-speed steel pivots that run in jewels, and hard
gold plating on all brass parts. The back cover closeup of the upper
part of the movement shows a closeup of the pendulum suspension. The
rocker plate is tilted to show suspension knives, which are made of
tungsten carbide and are supported by two large (.562 dia.) ruby jewels.
The jewels are lapped in place and the contact surfaces are both flat
and parallel to within .000010 inch. The entire assembly can be
precision leveled by means of four knurled screws at the bottom of the
support brackets. Impulsing is carried out by an arm at the inner end of
the rocker plate. Via two ruby balls the impulse is transferred to the
leaf spring attached to the pallet arbor.
Photography courtesy of Boris Vojvodich. |
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Last Updated:
November 30, 2006 |
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Copyright
© 1996-2007 National Association of Watch and Clock Collectors,
Inc
514 Poplar St., Columbia, PA 17512 |
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