Split-sec­ond pre­ci­sion


Virtuozity - - Watch -

RICHARD LANGE HAVE SENT the first of a to­tal of 100 new Jump­ing Sec­onds time­pieces to deal­ers, with each model fea­tur­ing a typ­i­cal reg­u­la­tor dial and zero-re­set mech­a­nism that come to­gether in a rein­ter­pre­ta­tion of the clas­si­cal sci­en­tific ob­ser­va­tion watch.

The Jump­ing Sec­onds also in­cludes a clas­sic func­tion that was once a fea­ture of A. Lange & Söhne’s his­toric pocket watches.

But there is also plenty of new tech­nol­ogy with the in­no­va­tive split­sec­ond pre­ci­sion de­liv­ered by the switch­ing impulse of the jump­ing sec­onds in­te­grated in the wheel train which de­liver fresh en­ergy to the re­mon­toir spring.

In a sep­a­rate wheel train be­tween the main­spring bar­rel and the es­cape­ment, the con­stant-force mech­a­nism com­pen­sates the grad­u­ally de­clin­ing power of the main­spring. It as­sures vir­tu­ally con­stant torque and a sta­ble am­pli­tude across the en­tire pow­er­re­serve pe­riod of up to 42 hours.

The zero re­set mech­a­nism also al­lows the watch to be quickly and com­fort­ably syn­chro­nised with a time sig­nal, while the rhodié-coloured reg­u­la­tor dial fea­tures a prom­i­nent sec­onds cir­cle and presents it­self in a stately plat­inum case with a di­am­e­ter of 39.9 mil­lime­tres.

A small aper­ture at the in­ter­sec­tion of the hour and minute cir­cles re­minds the owner when it is time to wind the watch: the dis­play switches to red ten hours in ad­vance. The time­piece also fea­tures a five-point star that con­trols the sec­onds jumps by ro­tat­ing be­neath a trans­par­ent sap­phire bear­ing jewel in the mid­dle of the mir­ror-pol­ished end piece.

In the move­ment, hand-fin­ished to the strictest Lange stan­dards, the tech­ni­cal pro­cesses are eas­ily ob­serv­able through the sap­phire-crys­tal case­back.

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