1930'S SWISS BUREN FRENCH PREWAR STEEL CASED 1930'S GLOSS RADIUM  DIALED 1930'S

175.00 RESTORE

18.00 MAIN SPRING

RECOMMEND KEEPING DIAL AS IS WITH A RELUMINATION 20.00
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I AM TORN HERE. ON ONE SIDE THIS ORIGINAL DIAL IS IN AWESOME CONDITION. THE ORIGINAL DEAD RADIUM THAT STILL CLICK A COUNTER, THOUGH NOT IN ANYWAY HARMFULL AT ALL, IS SIMPLY SUPER ALL THE WAY TO THE OUTER WHITE SWEEPS CHAPTER. THE FINISH IS GLOSS, WHICH MEANS PRE 1939/40. I MAY BE ABLE TO BRUSH LUMINOVA OVER RADIUM.

REDIAL= 75.00
BRUSH = LUMINOVA-IF IT WORKS WELL 20.00

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THE ABOVE SAYS IT ALL. A 7 JEWEL. DEFINITILLY A 1930'S. THOUGH RECALL THE MIMO THAT WAS PURCHASED BY HGERMANY IN 1936/7 IT ALSO WAS LOW JEWEL. 9 JEWELS TO BE CORRECT

CLICK BELOW FOR MIMO
.INTRODUCTION TO ISSUED GERMAN MILITARY WATCHES

CLICK BELOW TO READ/SEE UNISSUED WWII WATCHES
UNISSUED AMERICAN WWII MILITARY WATCHES 

THE HISTORY OF AVIATOR MILITARY WATCHES


A FEW OTHERS
INTRODUCTION TO JAPANESE MILITARY WATCHES
INTRODUCTION TO BRITISH WWI WWII MILITARY WATCHES
INTRODUCTION TO KOREAN WAR GLYCINE AIRMAN
A HISTORY OF AVIATORS WATCHES

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STAINLESS CASE IS EXCEPTIONAL
RARE TO FIND THESE
WILL COME OUT GREAT. I AM GOING TO FINISH LIKE THE 1940'S NON-GLARE

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SCREW BACK FRENCH CASE MADE BEFORE WWII

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STANDARD HOLD-DOWN

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CASE MADE IN FRANCE
DO NOT COBNFUSE THIS WITH CASES
MADE IN FRANCE AFTER THE WAR
UP UNTIL THE QUARTZ
THIS CASE IS TOP END PRE WWII WHEN
MATERIALS WERE AT A PREMIUM

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ALL STAINLESS SAYS IT ALL
NOTE THE "TK" HALLMARK
AGAIN
THIS DEMONSTRATES TOP OF THE LINE CASING

 

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MY CONCLUSIONS THAT THIS IS A RARE 1936 BUREN GRANDPRIX ARE BACKED BY THE VERY BURAN GRANDPRIX MOVEMENTS. ABOVE 1ST 1940 TO 1950 IS THE SAME MOVEMENT WE HAVE HERE. EXCEPT THE JEWEL COUNT WENT TO 15/17 JEWELS. THE SAME NBUREN GRANDPRIX WATCH AFTER 1950 IS THE ONE TOP RIGHT. COMPLETE CHANGE IN PLATES BRIDGES DESIGN. ANOTHER ITEM IS THAT OUR MOVEMENT AT BOTTOM MATCHES THAT OF WWII EXCEPT JEWELS AND THE MOST IMPORTANT? NONE HAVE THE EARLY 1930 HIGHER END BALANCE ADJUSTER.  ONLY THOSE MADE PRIOR TO WWII. AND, ONCE THE WAR BEGAN AND ENDED FOR FRANCE --NOT THE FREE FRENCH FORCES-- IN 1939, CASES FOR WATCHES STOPPED UNTIL AFTER THE WAR.

I REST MY CASE

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BUREN GRANDPRIX 7 JEWELS 1936

MOVEMENT IS A 1936 SUB SECOND REGISTER
WITH HACKED SWEEP SECONDS

IN OTHER WORDS IT BEGAN AS A SUB SECONDS
WITH SECOND HAND ABOVE "6"

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 BRANDS 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...

 

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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.

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SET BRIDGE + LEVER FINE

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AFTER CLEAN I GET HER RUNNING

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A CLEAN + CHANGE MAIN SPRING


HERE SHE IS WITH A NEW MAIN SPRING
RUNNING PERFECT