Vintage
Longines Ultra-Chron with chronometer certification (1973) 8353
Serviced and revised by Longines Heritage workshop
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.
Information & Conditions
Type of watch
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
17’000’822
Condition
Excellent overall condition, original dial
Longines cannot guarantee that its vintage models will be permanently water-resistant.
Maintained and checked by the Longines Heritage WorkshopDate of production
1973
Documents
Certificate of authenticity by Longines
Case
Dimension
35.50 x 32.50 mm
Case message
Cushion-shaped case in stainless steel
Material
Stainless steel
Dial & Hands
Dial
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 signature
Hands
Luminous steel baton hands
Dial color
Blue
Movement & Functions
Movement Type
Automatic
Caliber
6651
Functions
Hour, minute, second and date display
Movement
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 strap
Bracelet/Strap
18mm width
What makes this timepiece exceptional
With its cushion-shaped case and fluid lines, this chronograph has been designed for divers and timekeepers. Its oversized case allows you to easily read the graduated bezel as well as the large tenths of a second and minute counter. Covered with solid mineral glass, the case can withstand a pressure of 20 bars, allowing the diver to descend to a depth of 200 meters. This chronograph bracelet patented by Longines is also equipped with a second hand with a graduated "Vernier" scale at its tip, for quick and precise reading to the nearest tenth of a second. The chronograph movement manufactured by Longines also includes a flyback mechanism.
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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