Weems, reference 4356 Montre bracelet oversize d'aviateur en acier avec seconde centrale | Oversized stainless steel Aviator’s wristwatch with center seconds Vers 1948 | Circa 1948
September 29, 12:32 PM GMT
14,000 - 24,000 EUR
Weems Second Setting, reference 4356
Montre bracelet oversize d'aviateur en acier avec seconde centrale |
Oversized stainless steel Aviator’s wristwatch with center seconds
Vers 1948 |
Cadran: cadran extérieur en émail blanc, chiffres Breguet, cadran intérieur calibré pour 60 secondes
Calibre: cal. 37.9 remontage manuel, 15 rubis
Numéro de mouvement: 5'942'315
Boîtier: acier, cuvette et fond articulés
Numéro de boîtier: 21123, 15
Fermoir: bracelet associé en cuir et boucle ardillon en acier
Dimensions: 47 mm
Signé: boîte et mouvement signés Longines, candran signé Wittnauer et Longines
Accessoires: extrait des archives Longines
Dial: outer white enamel chapter ring, Breguet numerals, sunken inner dial calibrated for 60 seconds
Calibre: cal. 37.9 manual winding, 15 jewels
Movement number: 5'942'315
Case: stainless steel, hinged cuvette and back
Case number: 21123, 15
Closure: associated leather strap and stainless steel pin buckle
Size: 47 mm
Signed: case and movement signed by Longines, dial signed by Wittnauer and Longines
Accessories: Longines extract from the archives
Poids brut 101.10 g |
Gross weight 101.10 g
This extremely rare and attractive Longines reference 4356 was delivered in 1948 to Longines-Wittnauer in the USA. It is a spectacular example of the celebrated Weems. The double signed dial as well as the “LXW” on the movement confirm that importation to America.
The developer of this navigation watch was the lieutenant commander for the United State Navy P.V.H Weems.
In 1929, Navy Captain Phillip Van Horn Weems in conjunction with Longines, and Wittnauer, developed the Weems Second-Setting Watch for nautical navigation. Given the turbulent cockpits and the thick gloves needed for altitude flying, the Weems had typically an oversized case and crown.
Before this invention, it was almost impossible for pilots to set their watch on the right second. This means that the watch set to the correct hour and minute may still be in error as much as 30 seconds, which, near the equator, represents an error in longitude of 7.5 miles. The second-setting watch was devised to permit the exact second to be set, thus avoiding the correction ordinarily required by the navigation watch. This is done by rotating the inner seconds dial. The hour and minute hands are set in the usual way. When the minute hand is properly set, it should of course be exactly at a minute division when the second hand is at 60.
Pilots could listen to the time signals from the Radio.Time.Signals. from 5 minutes before each hour to the hour, the silence after 50th seconds of the fifth minute indicates at once the number of minutes of signal yet to be sent. The rotating inner dial displayed the correct minutes and graphically showed the margin of error from the original set time.
The original Longines Weems Second setting are extremely rare. Indeed, few were produced and only wealthy individuals could afford them.
This exceptional example has been preserved in outstanding condition. The oversized case shows incredibly strong proportions and retains its original crown. The dial has its enamel outer ring in beautiful state with elegant rail track and Breguet numerals matching the hands. The inner rotating grainé dial has a nicely contrasting eggshell coloration. Incredibly rare, the watch even has its original strap and buckle in remarkable condition.
This lot is an incredibly rare opportunity to acquire a specimen of the legendary model that can easily be considered as one of the very best examples to have ever appeared on the international market.