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1815 UP/DOWN

Power-reserve indicator “by means of a hand”

Patent No. 9349 was granted to A. Lange & Söhne on 18 May 1879. The subject was a “device in pocket watches for recognising whether the watch is wound or unwound and for indicating how much time remains before it reaches the totally unwound state.” This was the official moment of birth of Lange’s characteristic UP/DOWN power-reserve indicator. The name suffix of the 1815 UP/DOWN makes this clear.

The name of the 1815 UP/DOWN timepiece in white gold refers to the Lange-typical UP/DOWN power-reserve indicator.
The 1815 UP/DOWN timepiece in white gold features blued hands and a railway-track minute scale.

Just like the UP/DOWN power-reserve indicator, the blued hands, the recessed central segment, the Arabic numerals and the railway-track minute scale were inspired by historic pocket watches. A top-mounted wheel train on the caseback side of the movement and two additional screwed gold chatons are manifestations of the mainspring barrel that was enlarged in comparison with the 1815 and delivers power for three days.

Anthony de Haas介紹1815 UP/DOWN(英文)

部機芯 L051.2

Number of movement parts

245

寶石軸承數目

29

Number of screwed gold chatons

7

動力儲備

72 小時動力儲備(完全上鏈狀態下)

Oscillation system

振頻: 21600 每小時振頻

微調系統: 螺絲擺輪

機芯尺寸

直徑: 30.6 mm; 厚度 4.6 mm

部機芯 部機芯
部機芯 部機芯