LEGACY ATLANTIC CHALLENGE

A UNIQUE PIECE CELEBRATING AN INDIVIDUAL RACE AGAINST TIME

LEGACY ATLANTIC CHALLENGE
 

 ONBOARD THE GREATEST FEATS OF BRITISH SAILING. AGAIN

MAKING MARINE CHRONOMETERS, WE ARE DEEPLY ENTRENCHED IN NAVIGATION. RESPECTING OUR HERITAGE, WE HAVE A STRONG SENSE OF HISTORY. THE ATLANTIC CHALLENGE UNITES THESE ITEMS.

 

The Atlantic Challenge marine chronometer pays homage to Sir Francis Chichester and its heroic speed record during this eponymous race. Setting off from Bissau in Portuguese Guinea on January 12th 1971, aboard his 57ft ketch Gipsy Moth V, Chichester was the first to break the barrier of 200 miles per day in single-handed sailing. Limited to one unique piece, the Atlantic Challenge is the heir of Thomas Mercer marine chronometer No 23543, the timekeeper used to calculate longitude during this unforgettable race against time. Designed and manufactured with painstaking care, it is a fitting tribute.

 

design and unique features

A truly unique piece

The chronometer shows an elegant combination of high-gloss Ziricote, White Ripple Sycamore and Oak, surrounding a fine hand-painted dial featuring the Atlantic Ocean map on which the plot course of the 1971 Atlantic Race is represented. As a crowning touch of incomparability, engraved on the base plate are Sir Francis’ signature and Gipsy Moth V’s silhouette and deckplan, the latter showing the position on board of chronometer No 23543.

MATERIAL

The main timber is Ziricote, White Ripple Sycamore, Oak and the case is AISI 316 stainless steel.

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FINISHING

The metal is hand-polished and the main timber is sheen lacquer, full grain finish and burnished.

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SUSPENSION

The Legacy Atlantic Challenge features double gimbals, counterbalance free and double lock.

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GLASSES

The marine chronometer glasses are extra-white crystal.

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Mechanism

CALIBRE TM0801

The mechanism breaks new ground while retaining the classic elements of a pure marine chronometer. With a symmetrical layout and skeletonised plates, the detent escapement has been moved from its traditional place on the back plate to a new position where it can be viewed through the dial apertures. The gimbals suspension allows the mechanism to be rotated to reveal its innovative craftsmanship.

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POWER RESERVE

8 days

 

ESCAPEMENT

Spring Detent with fusee-and-chain drive

 

MAIN FUNCTIONS

Hour, Minute, Second, Power Reserve

 

DIMENSIONS

Diameter: 160mm
Height: 100mm

 
 

A truly British legend

Sir Francis Chichester’s name is a legend in British navigation.  Aviator and sailor, he was knighted in 1967 by Queen Elizabeth II as the first person to sail single-handed around the world by the clipper route, and the fastest circumnavigator. For the ceremony, Her Britannic Majesty used the sword employed by her predecessor Queen Elizabeth I to knight Sir Francis – Drake, the first Englishman to circle the globe. The new British passport features the Gipsy Moth IV alongside a modern marine chronometer and its ancestor H4, John Harrison’s invention that finally solved the problem of longitude determination at sea.

 

Technical data

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CASE

MaterialAISI 316 stainless steel
FinishHand polished
Suspension Double gimbals, counterbalance free and double lock
GlassesExtra-white crystal
DimensionsBase diameter: 316mm
Top ring diameter: 268mm
Height: 227mm

DIAL

MaterialSolid brass
TechniqueBas-relief (hour ring, main body, power-reserve indicator counter,
route map)
Finishhand painted route map
SettingWooden hour ring and Roman applique numerals
HandsBlued steel, handmade

WOODEN BASE AND SETTING

Main TimberZiricote, Oak, White Ripple Sycamore
FinishA/C lacquer 90% sheen, full grain finish, burnished

MECHANISM

CalibreTM0801
Power Reserve8 days
EscapementSpring Detent
Oscillator Ovalising balance with cylindrical weights
DriveMechanical spring with Fusee and Steel chain system
Frequency14.400 bph
Jewels17
FunctionsHour, minute, second
IndicationsPower reserve indicator at 12, small seconds with visible escapement at 6
FinishRhodium plated.
DimensionsDiameter: 160mm
Height: 100mm
 

“ THE LEGACY ATLANTIC CHALLENGE CELEBRATES THE INTRINSIC AND INDISSOLUBLE LINK BETWEEN YACHT RACING AND PRECISION TIMEKEEPING: BOTH STRIVE FOR PERFECTION - AND PERFECTION IS MEASURED AGAINST TIME, BE THIS IN MILES SAILED OVER 24 HOURS OR FRACTIONS OF A SECOND OVER THE SAME PERIOD.”

ALESSANDRO QUINTAVALLE
CEO, THOMAS MERCER

OBSERVATORY

GRAND COMPLICATION

Legacy

Black

Legacy

SHACKLETON EPIC

SPECIAL PIECES

BRITTANICA OW 2015