|Date/Report Number ..040211.LC-JOSMB4 Item:1938-1944 MINERVA JOHs HARTMANN BERLIN GERMAN MILITARY CONVERSION WRIST WATCH.|
|Description of item: 1938-1944 MINERVA JOHs
HARTMANN BERLIN GERMAN MILITARY CONVERSION WRIST WATCH. WITH MINT CONDITION ORIGINAL DIAL
WITH HANDS AND DIAL NUMERALS RELUMED WITH , OFF-SET CASE MEASURING 48MM WITHOUT CROWN.
THIS JOHs HARTMANN BERLIN MINERVA HAS A SCREW ON CASE BACK & BEZEL PROVIDING BETTER
MOISTURE & DUST PROTECTION OVER STANDARD HINGED TYPE CASES. CHROME OVEER BASE CASE IS
IN OVERALL EXCELLENT CONDITION. THE CASE AND MOVEMENT ARE SIGNED WITH THE MINERVA ARROW
LOGO AND THE MOVEMENT SPORTS SWISS BARS BRIDGE FINISH. CASE BACK HAS SOME SCRATCHES AND IS
SIGNED 551.a. ATTACHED IS A NEW LUXURY VINTAGE STYLE DOUBLE CONTRAST STITCHED & PADDED
BLACK FINISH TOP GRAIN LEATHER MILITARY CHRONOGRAPH STRAP. CONDITION IS EXCELLENT TO FINE.
Estimated Retail Replacement Value $ 1599.00
|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|
1858 by Charles-Yvan Robert and Hyppolite Robert began building assembling watches from using various company ébauche and parts. In 1887, Robert's sons, Charles-Auguste and Georges-Louis, built the business into the Minerva Company. Minerva actually designed and manufactured the most critical parts, such as the movement blank, in their own engineering workshops.
The earliest Minerva wristwatch was manufactured in 1909. In 1923 Minerva introduced the No. 20 calibre with the classic and refined architecture of wrist chronographs of that era. The No. 20 had utilized a column-wheel mechanism, Breguet balance-spring and 17 jewels. Minerva earned its reputation as a manufacturer of complicated movements of exceptional quality.
In 1936, Minerva was chosen by the Third Reich to keep time during the 1936 Winter Olympics in Garmisch-Partenkirchen.
MINERVA WOULD SUPPLY A HOST OF WATCHES ROM 1935 THROUGH 1944, INCLUDING TIMERS, WRIST WATCHES, FLIGHT CHRONOGRAPH, POCKET DECK, GROUND AND FLIGHT WATCHES. THOUGH MOST WATCHES WERE SPECIFICALLY MARKED WITH D-H, KM AND OTHER GOVERNMENT CONTRACT MARKINGS SPECIFIC TO THE GERMAN MILITARY BRANCH, WATCHES SUCH AS THIS RARE JOHs HARTMANN BERLIN MINERVA POCKET WATCH CONVERSION WERE IN DEMAND BY GERMAN OFFICERS.