Datograph Perpetual Tourbillon

740.036F

Datograph Perpetuel Tourbillon View larger
Datograph Perpetual Tourbillon

Brand  : A. Lange & Söhne
Collection  : Datograph
Model  : Datograph Perpetual Tourbillon
Reference  : 740.036F
Nber of pieces : 100
Complement : Platinum - Solid Silver Dial - Strap Alligator
To come : 2016

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  • Brand  : A. Lange & Söhne
    Collection  : Datograph
    Model  : Datograph Perpetual Tourbillon
    Reference  : 740.036F
    Nber of pieces : 100
    Complement : Platinum - Solid Silver Dial - Strap Alligator
    To come : 2016
    List Price : 300 500 €
    Diameter : 41.5 mm
    Thickness : 14.6 mm
    Styles : Classical
    High Horology
    Sporty
    Types : Hand-winding
    Calibre : Lange L952.2
    Calibre distinction : Hand-engraved
    Circular Graining
    Hand decorated
    Glashütte ribbing
    Assembled by hand
    Complication : Stop second mechanism
    Jumping Minute Counter
    Power Reserve Indicator
    Perpetual Calendar
    Big Date
    Tachymeter's scale
    Small Seconds
    Day/Night Indicator
    Tourbillon
    Astronomical Moon Phases
    30-Minute Counter
    Flyback Chronograph
    Case material : Platinum
    Case peculiarity : Sapphire caseback
    Shape : Round
    Dial : Solid silver
    Dial color : Black
    Display : Luminescent hands
    Gold hands
    Indexes : Baton-type
    Glass : Sapphire
    Strap material : Alligator leather
    Strap color : Black
    Strap clasp : Folding buckle
    + More characteristics :
    Movement
    Crafted calibre to the most exacting Lange quality standards, decorated and assembled by hand
    Precision-adjusted in five positions
    Plates and bridges made of untreated German silver
    Intermediate wheel cock and tourbillon bar engraved by hand
    729 movement parts
    59 bearing jewels including one diamond endstone
    5 screwed gold chatons including one diamond endstone
    Lever escapement
    Oscillator
    Shock-resistant balance wheel with eccentric poising weights; balance spring manufactured in-house with a frequency 18,000 semi-oscillations per hour
    Power reserve of 50 hours when fully wound
    Tourbillon with patented stop seconds Movement dimensions
    Diameter: 32.6 millimetres
    Height: 9.0 millimetres

    Case Crown for winding the watch and setting the time
    Two pushers for operating the chronograph
    Rapid-correction pusher for collectively advancing all calendar displays
    One recessed corrector each for adjusting the day of the week, the month, and the moon phases
    Sapphire crystal (Mohs hardness 9)

    Dial
    Hour and minute hands in rhodiumed gold, luminous
    Seconds, day, month, and four-year hands as well as minute-counter hand in rhodiumed gold
    Chronograph sweep seconds hand in rhodiumed steel

    Strap
    Hand-stitched alligator leather strap
    Platinum deployant buckle

DESCRIPTION

  • DATOGRAPH PERPETUAL TOURBILLON

    Chronograph with perpetual calendar and tourbillo

    The latest masterpiece from Saxony pairs three complications with five supplementary functions. This unique timepiece by A. Lange & Söhne is not only technically impressive, but also stands out with a superbly organised face despite the density of information it displays.

    During the development of a multiple-complication timepiece, the most formidable challenge is to achieve the perfect interaction between different highly complex mechanisms and embedding them in a smoothly functioning ensemble. A. Lange & Söhne’s DATOGRAPH PERPETUAL TOURBILLON is such a horological work of art.

    The black solid-silver dial of the new model contrasts beautifully against the 41.5-millimetre platinum case as well as the hands and hour markers in rhodiumed gold. It is limited to 100 watches. The name of the complicated watch subsumes its abundant timekeeping capabilities:

    DATOGRAPH
    DATOGRAPH designates a column-wheel chronograph with a precisely jumping minute counter, a flyback function and the typical Lange outsize date. To master the challenge of precise short time measurements, the product developers relied on an ingenious feature that had already proven itself in the DATOGRAPH UP/DOWN. It distils three major technical advances in chronograph design into one: the column-wheel mechanism assures that all chronograph functions are reliably controlled. The jumping minute counter crisply displays the stopped times. And the flyback function allows the duration of consecutive events to be measured with extremely short reaction times.

    PERPETUAL
    PERPETUAL, the middle element of the name, refers to a instantaneously jumping perpetual calendar with a moon-phase display. All indications of the perpetual calendar – including the outsize date as well as the day-of-week, month and leap-year displays in subsidiary dials – switch instantaneously and thus provide unambiguous readings at all times. A first correction of the mechanism by one day can wait until the first day of March in the secular year 2100. And because of its stunning mechanical precision, the moon-phase display will only deviate from the true lunation by a single day after 122.6 years. Three correctors allow the separate adjustment of the moon-phase display, the day of the week and the combined advance of the month and leap-year indications. After a standstill of merely a few days, the rapid-correction pusher at ten o’clock can be used to conveniently update all displays at the same time.

    TOURBILLON
    The fascinating tourbillon mechanism is exposed by the sapphire-crystal caseback and the open tourbillon bridge. There, the escapement rotates about its own axis once a minute inside the filigreed cage. This rotary motion offsets the influence of gravity on the balance wheel with eccentric poising weights. In conjunction with the free-sprung balance spring crafted in-house, it assures excellent rate accuracy across the entire 50-hour power reserve. The power-reserve indicator integrated at the end of the tachymeter scale reminds the owner when it is time to rewind the watch. For the first time in a Lange tourbillon, the balance beats at a rate of 18,000 instead of the conventional 21,600 semi-oscillations per hour. This corresponds to a frequency of 2.5 hertz. Consequently, stopped times can be displayed with an accuracy of one-fifth of a second. The patented stop-seconds mechanism instantaneously brings the balance wheel inside the tourbillon cage to a standstill when the crown is pulled. This allows the watch to be set with one-second accuracy.

    Never stand still
    In addition to the development of the 729-part calibre L952.2 movement, the finissage and assembly processes challenged the expertise of the manufactory. Only the most talented watchmakers can overcome the numerous obstacles encountered en route to the flawless interaction of the individual modules. The path to success requires extensive experience, dexterity, concentration and patience. Thus, the DATOGRAPH PERPETUAL TOURBILLON is yet another manifestation of A. Lange & Söhne’s determination to never stand still and to test the limits of mechanical horology.

  • DATOGRAPH PERPETUAL TOURBILLON

    Chronograph with perpetual calendar and tourbillo

    The latest masterpiece from Saxony pairs three complications with five supplementary functions. This unique timepiece by A. Lange & Söhne is not only technically impressive, but also stands out with a superbly organised face despite the density of information it displays.

    During the development of a multiple-complication timepiece, the most formidable challenge is to achieve the perfect interaction between different highly complex mechanisms and embedding them in a smoothly functioning ensemble. A. Lange & Söhne’s DATOGRAPH PERPETUAL TOURBILLON is such a horological work of art.

    The black solid-silver dial of the new model contrasts beautifully against the 41.5-millimetre platinum case as well as the hands and hour markers in rhodiumed gold. It is limited to 100 watches. The name of the complicated watch subsumes its abundant timekeeping capabilities:

    DATOGRAPH
    DATOGRAPH designates a column-wheel chronograph with a precisely jumping minute counter, a flyback function and the typical Lange outsize date. To master the challenge of precise short time measurements, the product developers relied on an ingenious feature that had already proven itself in the DATOGRAPH UP/DOWN. It distils three major technical advances in chronograph design into one: the column-wheel mechanism assures that all chronograph functions are reliably controlled. The jumping minute counter crisply displays the stopped times. And the flyback function allows the duration of consecutive events to be measured with extremely short reaction times.

    PERPETUAL
    PERPETUAL, the middle element of the name, refers to a instantaneously jumping perpetual calendar with a moon-phase display. All indications of the perpetual calendar – including the outsize date as well as the day-of-week, month and leap-year displays in subsidiary dials – switch instantaneously and thus provide unambiguous readings at all times. A first correction of the mechanism by one day can wait until the first day of March in the secular year 2100. And because of its stunning mechanical precision, the moon-phase display will only deviate from the true lunation by a single day after 122.6 years. Three correctors allow the separate adjustment of the moon-phase display, the day of the week and the combined advance of the month and leap-year indications. After a standstill of merely a few days, the rapid-correction pusher at ten o’clock can be used to conveniently update all displays at the same time.

    TOURBILLON
    The fascinating tourbillon mechanism is exposed by the sapphire-crystal caseback and the open tourbillon bridge. There, the escapement rotates about its own axis once a minute inside the filigreed cage. This rotary motion offsets the influence of gravity on the balance wheel with eccentric poising weights. In conjunction with the free-sprung balance spring crafted in-house, it assures excellent rate accuracy across the entire 50-hour power reserve. The power-reserve indicator integrated at the end of the tachymeter scale reminds the owner when it is time to rewind the watch. For the first time in a Lange tourbillon, the balance beats at a rate of 18,000 instead of the conventional 21,600 semi-oscillations per hour. This corresponds to a frequency of 2.5 hertz. Consequently, stopped times can be displayed with an accuracy of one-fifth of a second. The patented stop-seconds mechanism instantaneously brings the balance wheel inside the tourbillon cage to a standstill when the crown is pulled. This allows the watch to be set with one-second accuracy.

    Never stand still
    In addition to the development of the 729-part calibre L952.2 movement, the finissage and assembly processes challenged the expertise of the manufactory. Only the most talented watchmakers can overcome the numerous obstacles encountered en route to the flawless interaction of the individual modules. The path to success requires extensive experience, dexterity, concentration and patience. Thus, the DATOGRAPH PERPETUAL TOURBILLON is yet another manifestation of A. Lange & Söhne’s determination to never stand still and to test the limits of mechanical horology.

  • Brand  : A. Lange & Söhne
    Collection  : Datograph
    Model  : Datograph Perpetual Tourbillon
    Reference  : 740.036F
    Nber of pieces : 100
    Complement : Platinum - Solid Silver Dial - Strap Alligator
    To come : 2016
    List Price : 300 500 €
    Diameter : 41.5 mm
    Thickness : 14.6 mm
    Styles : Classical
    High Horology
    Sporty
    Types : Hand-winding
    Calibre : Lange L952.2
    Calibre distinction : Hand-engraved
    Circular Graining
    Hand decorated
    Glashütte ribbing
    Assembled by hand
    Complication : Stop second mechanism
    Jumping Minute Counter
    Power Reserve Indicator
    Perpetual Calendar
    Big Date
    Tachymeter's scale
    Small Seconds
    Day/Night Indicator
    Tourbillon
    Astronomical Moon Phases
    30-Minute Counter
    Flyback Chronograph
    Case material : Platinum
    Case peculiarity : Sapphire caseback
    Shape : Round
    Dial : Solid silver
    Dial color : Black
    Display : Luminescent hands
    Gold hands
    Indexes : Baton-type
    Glass : Sapphire
    Strap material : Alligator leather
    Strap color : Black
    Strap clasp : Folding buckle
    More characteristics :
    Movement
    Crafted calibre to the most exacting Lange quality standards, decorated and assembled by hand
    Precision-adjusted in five positions
    Plates and bridges made of untreated German silver
    Intermediate wheel cock and tourbillon bar engraved by hand
    729 movement parts
    59 bearing jewels including one diamond endstone
    5 screwed gold chatons including one diamond endstone
    Lever escapement
    Oscillator
    Shock-resistant balance wheel with eccentric poising weights; balance spring manufactured in-house with a frequency 18,000 semi-oscillations per hour
    Power reserve of 50 hours when fully wound
    Tourbillon with patented stop seconds Movement dimensions
    Diameter: 32.6 millimetres
    Height: 9.0 millimetres

    Case Crown for winding the watch and setting the time
    Two pushers for operating the chronograph
    Rapid-correction pusher for collectively advancing all calendar displays
    One recessed corrector each for adjusting the day of the week, the month, and the moon phases
    Sapphire crystal (Mohs hardness 9)

    Dial
    Hour and minute hands in rhodiumed gold, luminous
    Seconds, day, month, and four-year hands as well as minute-counter hand in rhodiumed gold
    Chronograph sweep seconds hand in rhodiumed steel

    Strap
    Hand-stitched alligator leather strap
    Platinum deployant buckle