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Suwanee, Georgia. 30024
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Date/Report Number …..022612R5BY.04 Item:  1938 WWII PIERCE HACKED SWEEP SECONDS PARASHOCK
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Description of item: VINTAGE 1938 WWII PIERCE HACKED SWEEP SECONDS PARASHOCK 28.5 x 30 W/O CROWN WITH PIERCE 15 JEWEL HACKED SWEEP SECONDS PARASHOCK [SHOCK PROTECTION] 103 MOVEMENT . CONDITION MINT.

.Estimated Retail Replacement Value $799.00


Reports are supplied at the request of the customer and it is for the customer's exclusive use. Reports express an opinion of the time of the examination of the jewelry. This report is for customers use only for the following two purposes, indicating estimated retail replacement value to obtain insurance coverage, or for the purpose of providing geological information. goldsmith Works does not guarantee that the appraisal valuation will result in a sale at the price. Estimated retail replacement value is arrived after analyses of what the approximate high retail cash asking price is for labor, materials, and design. These prices may be substantially higher than actual transaction or warranty with regards to any item described in the report, since jewelry grading is not an exact science, this  report represent the best opinion of the company. GoldSmith Works is in no case responsible for differences that occur by repeated grading by other experts in the field and/or use of other standards, norms, methods or criteria other than those used by GoldSmith Works. GoldSmith Works is expressly held harmless by customers including, but with out limitation for any claims or actions that may arise out of negligence in connection with the preparation of this laboratory report, or actions based upon the customer's use of the report. The information on the carat weight, clarity grade, color grade on the report is approximate due to the limitations in jewelry grading. The item was tested, graded, and examined under 10x magnification using the techniques and equipment available to GoldSmith Works, including fully corrected triplet loupe, binocular microscope, master color comparison guides, diamond color comparison tools, electronic carat balance, non-contact optical measuring device, and ancillary instruments necessary at the time of Exam

 

 

parashock-peirce.jpg (62840 bytes)



1938
WWII
PIERCE
HACKED SWEEP SECONDS
PARASHOCK
28.5 x 30
W/O CROWN

WITH

PIERCE
15 JEWEL
HACKED SEEP SECONDS
PARASHOCK
[SHOCK PROTECTION]
103
MOVEMENT

WITH

WATER RESISTANT
ANTI MAGNETIC
CASE


AND

NEW OLD VINTAGE
HAD MADE
CONTRAST STITCHED
GOLDEN BROWN
SEMI PADDED
LEATHER STRAP

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parashock-peirce4.jpg (63275 bytes)

THE PIERCE WATCH WAS HIGHLY RESPECTED. BOASTING SHOCK PROTECTION, WATER PROTECTION AND AIRTIGHT, MANY WERE SOLD IN THE USA AND OVERSEAS PRIOR TO AND DURING WWII.


parashock-peirce3.jpg (62263 bytes)

THE INCABLOC WAS THE FIRST BALANCE SHOCK ABSORBER SYSTEM UTILIZING DUAL JEWELS WITH A BRASS SPRING SYSTEM... BUT IT WAS PATENTED. SO PIERCE UTILIZED THE COMPETING SYSTEM CALLED THE PARASHOCK SYSTEM. BOTH WERE UTILIZED IN MILITARY WATCHES.

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WWII
CENTER SWEEP


Prior to WWII, most watches had a sub-second register above the #6 position. This design failed to allow precision seconds timing. The sub-second style dial, with a tiny second hand rotating around a tiny seconds register at the 6 position, was difficult to utilize for timing events. In most cases it was ignored. On the other hand, a sweep second hand could be used to time events, mark events, and was easier to read .

By 1942, the sweep second hand watch had became "the" watch. Two of the major reasons were the Government issued U.S.A. A-11 hacking sweep seconds pilots watch and the sweep seconds watches in demand by Doctors, Medics and Nurses and other professionals.. The sweep second watch simply made the watch more than an instrument to "tell time"....

THE DESIGN

So, what did Pierce and others do?

Did they re-tool and re-design new movements? NO!

They simply placed a hollow canon pinion that allowed a wheeled center shaft to protrude through the dial, mounted a second hand to it, and ran the combo with the very sub-seconds wheel they were eliminating...

 wpe1.jpg (30490 bytes)
gsw/mwb/gsww archive photo

Instead of the drive train turning the dial protruding shaft/pinion at 6 position connected to the tiny second hand, they mounted a large brass/alloy wheel on the opposite side of the shaft that now protruded through the bridge. That wheel turned a wheel on top of a NEW center "shaft' held in position be a new this jeweled bridge that went through a new HOLLOW center cannon pinion in the center of the movement that then protruded through the center of the dial where a new long sweep second hand attached;  the idea being that one had a large second hand that went round in tune with the movement and the chapter ring so one could count, time & now even synchronize.


parashock-peirce.jpg (62840 bytes)

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CASE IS REFINISHED STEEL
WITH
STAINLESS STEEL SCREW DOWN CASE BACK

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WITH OFF WHITE DIAL
BLACK OUTLINED RAISED LUME NUMERALS
RED 13 - 14 HOUR NUMERALS
BLACK HASH & NUMERAL
OUTER CHAPTER RING

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SIGNED
PIERCE

WITH

RED SWEEP SECOND HAND

BLACK STEEL WITH LUME CENTERS
HOUR & MINUTE

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NEW LUME
NUMERALS AND HANDS

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NEW PLASTIC CRYSTAL

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ORIGINAL CROWN

IMG_3330.JPG (108967 bytes)

STEEL CASE IS THICK
CASE BACK HAS NEW SEAL

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HEAVY 4 SCREW STEEL BACK

IMG_3331.JPG (93001 bytes)

NEW OLD VINTAGE
HAD MADE
CONTRAST STITCHED
GOLDEN BROWN
LEATHER STRAP

9"
FITS UP TO 8"

IMG_3324.JPG (91499 bytes)

SEMI PADDED

28.5 x 30
W/O CROWN

AAA-PIERCE.jpg (21299 bytes)

Pierce
1940
103

Features
manual wind
hack sweep second
parashock

Data
10.5 / 11.5'''
Dm= 23.3mm
Do=Dm= 25.5mm
H= 4.9mm
15 jewels
f = 18000 A/h
power reserve 40h


NOTICE

THE ADDED SWEEP SECONDS HACK.
THE LARGE BRASS WHEEL
WAS ADDED TO A SUB-SECONDS
MOVEMENT AND THIS CREATED THE
ABILITY TO TIME WITH THE WATCH
PERFECT FOR PILOTS NURSES DOCTORS
AND ANYONE WHO REQUIRED SECONDS TIMING

and

THE SHOCK PROTECTION
FOR THE BALANCE. SEE THE RED
RUBY WITH BRASS?