Chronograph Yema Le Jour 70' Superb Condition Valjoux 7734 Manual. The description of this item has been automatically translated. LE JOUR AND YEMA, A CLOSE COLLABORATION. The creation of LE JOUR dates back to the 1960s. It is a well-known brand among watch enthusiasts and collectors.Neat lines, inspired by the automotive, sailing and aviation fields, high-end mechanical movements, reliable construction: these period timepieces are particularly sought after and their price remains relatively reasonable. Marie Pia Coustans explains to us by his immense work carried out in his essential work Time of Heroes » how LE JOUR is closely linked to YEMA: In 1965, YEMA watches were distributed in 55 countries.
During these years, in addition to participating in the international watch fairs he deemed obligatory, Henry-Louis Belmont (owner of the YEMA brand), continued to tirelessly travel the world in search of new importers while strengthening the relationships forged with those existing. It is the importers who put in place the means necessary for the distribution of YEMA branded watches by deciding on the means they deem necessary for their contribution.
Thus, YEMA does not have the same image throughout the world. Henry-Louis Belmont proposes to French and foreign watchmakers (to a lesser extent), to put their name on the dial of watches produced by YEMA in order to reduce its production costs. These finished watches, identical to those with the YEMA logo, bear the stamp of several brands Ascot, Birks, Calvy, Cornel, Dugena, Elvia, Helbros, Jopel, etc.
But above all LE JOUR. These different brands also source their supplies from other watchmakers, as LE JOUR was able to do with HEUER. During the 1980s, LE JOUR was, like many others, a victim of the quartz revolution. She gradually abandons her production to finally disappear.
The story could have ended there and yet it didn't. Nearly 30 years later, LE JOUR is reviving its heritage and offering itself a renaissance by offering emblematic models from the past, which it adapts to current trends.
Modern life in its hectic manifestations is no longer content with the minute or the second; it dissects the unit of time to be able to appreciate the tiny durations it needs. It is therefore important to measure durations with greater rigor, and you who wear a chronograph watch on your arm, do you know all the ingenuity that a host of researchers and watchmakers had to deploy to adapt to a movement, these subtle mechanisms ready to obey your reactions in a fraction of a second??? Docile, the hands move on, they will count the minutes and hours for you and will stop at the chosen moment: their very positions will define the duration you wanted to evaluate. DO NOT CONFUSE CHRONOGRAPH AND CHRONOMETER.The chronograph is a timepiece, in the particular case a watch, with a hand placed in the center of the movement. This hand, called "second hand", can be at will: started, stopped, then brought back to the starting point. These different "functions" are operated by means of a so-called "chronograph" mechanism. The terms chronograph and chronometer are quite often confused however, a chronograph can also be a chronometer, you will understand... A chronometer is a watch which, observed in different positions and at various temperatures, gives sufficient adjustment results to obtain an official certificate of operation (certificate of chronometry generally issued by the COSC: Swiss Official Chronometer Testing Institute). In the case of this chrono, it is of course a chronograph. Mm wide excluding winder, 44 mm long at the end of the handles and 15 mm thick glass included.
Housing : Chronograph from the 70s, barrel-shaped, in the line of the Omega Speedmaster Mark II or the famous Heuer Pasadena, in very good condition for the time, in blackened PVD metal with the screwed back in stainless steel, a silhouette seventies, sports. The "stick"-shaped hour, minute and second hands, the minute counter hands and the chrono central second hand are orange. The minute counter at 30 and the counter on the left for the permanent second hand at 60 seconds are sober and elegant.
Observe the finesse of the tachymeter scale on the flange, and the detail of the railroad for the chrono seconds, a real success! Movement : draft Switzerland, here is the story of. Valjoux SA: formerly Reymond Frères SA, is a Swiss watchmaking company founded in Bioux in 1901. Specializing in the manufacture of chronograph blanks, it joined Ébauches SA in 1944 and was absorbed by ETA Manufacture Horlogère SA in 1965.
Its name comes from the contraction of "Vallée de Joux", a region located in the Swiss jura, within the. Where the factory is located. It is therefore the famous. Hand-wound mechanical, designed in 1969 until 1978, 17 jewels, shockproof, 18000 alt/hours and date. One of the most used chronograph movements at that time, all brands combined.This movement is very well known to amateurs and collectors of old watches because it has equipped many stopwatches from major brands such as Breitling, Heuer, Bulova, Junghans, Certina, Lip, Tudor, Hamilton, Longines, Cortebert, Gruen, Tissot, Zodiac, Butcher.. Strap : New, in blackened steel, goes wonderfully with all of this timepiece. 20 mm wide at the watch.
Comments : Very rare model, superb condition, super reliable, Swiss movement used by the biggest brands of the time, a dial made with taste and finesse typical of this seventies period. Over the decades, Le Jour has retained its timeless vintage design, precise engineering and reliable construction by including only very high quality mechanical movements (ETA-Valjoux), for a price that few brands know the price of.If you want other information or photos, do not hesitate to contact me every day. Henry-Louis Belmont proposes to French and foreign watchmakers to a lesser exte. This item is in the category "Jewellery & Watches\Watches, Parts & Accessories\Watches\Wristwatches". The seller is "ocoeurdutemps" and is located in this country: FR. This item can be shipped worldwide.