Vintage
Longines Ultra-Chron with chronometer certification (1973) 8353-17000822
Case size:
No Longer available
This watch has been already sold. Let's find our other restored watches here.
Serviced and revised by Longines Heritage workshop
No Longer available
This watch has been already sold. Let's find our other restored watches here.
Serviced and revised by Longines Heritage workshop
Case size:
Collector's Corner
The long and rich history of Longines is written into each of the brand’s design. Each piece produced over the years is part of the Swiss watchmaker identity, a historical legacy that Longines has always strived to preserve and highlight.
That is why the brand now offers a range of exceptional vintage watches that have been carefully serviced and revised by its specialised heritage workshop. These unique models are exclusively on sale in the Longines Geneva Boutique (Switzerland) and available in click & reserve.
Information & Conditions
Watch type
Stainless steel watch, from the Ultra-Chron collection. When Longines launched this collection in 1967, it guaranteed an accuracy of one minute a month, equal to two seconds a day. The watch is certified as a chronometer.Serial No
17000822Condition
Excellent overall condition, original dialLongines cannot guarantee that its vintage models will be permanently water-resistant. Maintained and checked by the Longines Heritage WorkshopProduction date
1973Documents
Certificate of authenticity by Longines
Case
Dimension
35.50 x 32.50 mmCase type
Cushion-shaped case in stainless steelMaterial
Stainless steel
Dial & Hands
Description
Blue sunray dial with applied steel baton hour markers, date window positioned between 4 and 5 o'clock, applied Ultra-Chron symbol, winged hourglass logo and Longines signatureHands description
Luminous steel baton handsDial color
Blue
Movement & Functions
Movement Type
AutomaticCaliber
6651Functions
Hour, minute, second and date displayMovement
Longines self-winding mechanical movement, caliber 6651. This 25.60 mm caliber includes 25 jewels. The balance spring oscillates at 28,800 vibrations per hour.
Strap
Material
Leather strapSize
18 mm
What makes this timepiece exceptional
Longines registered the Ultra-Chron trademark in Switzerland on October 28, 1966. The entire collection is defined by the high-frequency movement that powers it. In terms of serial production, it is one of the most precise watches of this era: Ultra-Chron, short for Ultra-Chronometer, implies that this movement can guarantee much higher standards of precision than traditional chronometers. The Longines Ultra-Chron was the last mechanical watch to match the precision of electronic watches of its time. And of course, no batteries are required. The watch is certified as a Chronometer by the COSC.
The 13.33Z caliber is one of the first small-size chronograph movements ever developed for a wristwatch. The refinement of the movement includes an instantaneous minute-counter: The minute hand jumps one step forward exactly between the 59th and the 60th second of a minute.
In addition, the enamel dial is hand painted and of great beauty. By looking closer, one can distinguish the remarkable work of hand-made brush. The exceptional condition of the gold case of this timepiece is due to a complete restoration based on the expertise of the Longines heritage workshop jeweller.
About restoration
Restoration by Longines is made up of more than ten meticulous steps calling on all the qualities of our experts. From diagnosis to testing, discover more about Longines workshop services.
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