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DELMA VALJOUX 7750 VINTAGE SWISS CHRONOGRAPH CLASSIC

Estimated price for orientation: 1 750 $

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Description
Condition: Pre-owned: An item that has been used or worn previously. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition Brand: Delma
Band Material: Stainless Steel Gender: Men's
Case Size: 40mm Features: Day Indicator, Date Indicator, Tachymeter, 12-Hour Dial, Acrylic Crystal
Age Group: Adult Movement: Mechanical (Automatic)
Year of Manufacture: 1970-1979 Display: Analog
Country/Region of Manufacture: Switzerland Case Material: Stainless Steel


DEVELOPING THE 7750The 7750 was developed by Valjoux, a legendary movement maker that was part of the giant ASUAG conglomerate. Created in 1931, AUSAG consolidated many of the independent movement makers in Switzerland. By the early 1970s, AUSAG included several watch brands, such as Certina, Edox, Eterna, Oris and Longines. The origins of the 7750 spring from another famous name from the past, Venus, which became part of Valjoux in 1966.Many of the world’s best known automatic chronograph movements were developed in the arms race of the late 1960s. Between 1969-1974, there was a golden age of innovation, with the Heuer- Breitling- Hamilton Chronomatic (1969), Seiko 6139 (1969), Zenith El Primero (1969) and Lemania 5100 (1973) all being launched.Although Valjoux was the leader in manual-wind chronographs, it was slow to the self-winding party, appointing Edmond Capt to lead the development of a new movement in the early 1970s. Based on the manual-wind Valjoux 7733 (itself a descendent of the Venus 188), the 7750 was first available in watches in 1974, having been one of the first movements to be designed with the aid of a computer.A reliable, cost-effective calibre, the 7750 is relatively thick and large compared to its contemporary competitors. There is also a sonic signature: the sound of the rotor. The 7750 is mono-directional (only winds in one direction), and so has a relatively large and heavy oscillating weight that can reach high speeds when rotating in its non-winding direction. Because it free-spins in one direction, you can sometimes feel the movement “wobbling” on your wrist. It’s alive!The first versions of the Valjoux 7750 came in two frequencies- 21,600 bph and 28,800 bph, each with 17 jewels.Despite a promising start (an estimated 100,000 units in its first year), the Valjoux 7750 was all but dead by 1975, when the decision was taken to stop production. The advent of low-cost quartz movements from Japan had all but destroyed demand for expensive Swiss mechanical watches. Despite stopping production in 1975, such was the drop in demand for the movement, that supply lasted until the early 1980s.However, just as happened with the El Primero at Zenith, local management ignored the orders to destroy the dies and equipment used to manufacture the 7750, instead hiding the equipment away from corporate eyes.1985: Re-birth of the 7750Production of the Valjoux 7750 re-started in 1985, as business conditions began to stabilise following the creation of what we now know as Swatch Group.Valjoux began to expand the number of variations of the 7750, offering  two, three and four (!), as well as a moon-phase complication.
Up for sell this highly collectible, Delma of Switzerland Chronograph, with it´s Tachymetre watch in fantastic condition, works correctly and keeps time.It´s movement, an Valjoux 7750 is a 17 jewels, chronograph lever movement.It has a running second dial at the 9 o'clock position, a 30 minute counter sub-dial at 12 o'clock, an 12 hours counter sub-dial at 6 o'clock and a sweep second counter mounted centrally along with the timekeeping minute and hour hands.An day and date display is provided at the 3 o'clock position.The chronograph functions are controlled through two buttons, one (at 2 o'clock) for starting and stopping the chronograph, one (at 4 o'clock) for resetting the second and minute counters.The grey and blue dial is in original and good condition for it´s age.Top Pusher Starts and Stops the Chronograph.  Bottom Pusher Resets Registers to Zero.Measures 40 mm without crown and 40 mm lug to lug.Functions: Hours, minutes, seconds, chronograph & date.  With it´s “NSA” vintage steel strap.Efficiently Made, Hard to RepairAssembly instructions for the automatic and chronograph mechanism of the Valjoux 775015% discount for PayPal direct paymentAny defects not mentioned but visible in the pictures will be considered as described.Unless noted otherwise, my items are pre-owned and will have visual and physical cues typical of an item that has been used and handled. Please go through all the descriptions, photos and selling policies before you place your purchase, The photos show the item you will receive. Please notice that accuracy and water resistance are not guaranteed. Do not miss the opportunity to purchase this truly beautiful timepiece at a great price!This is a great find for the watch collectors and admirers!Don't invest in the stock market, buy something proven in time!