A. Lange & Söhne Richard Lange "Reference Watch"
© A. Lange & Söhne
Richard Lange "Reference Watch" (Referenzuhr) is a wristwatch by A. Lange & Söhne.
The model family of the Richard Lange was complemented by the limited edition of this "Reference Watch" at the beginning of 2010. It is equipped with a power reserve indication and a ZERO-RESTART function for short-term measurements: Pressing the pusher the seconds hand is synchronized with a reference watch as it passes over the position "Sixty" or "zero". A vertical disc clutch ensures that the measurement of time is not interrupted at the hacking seconds and the movement continues to run unhindered. Once the pusher is released, the seconds hand moves on instantaneously.
The watch is only available in 18 ct red gold or platinum; the limitation is 50 pieces in platinum and 75 pieces in red gold. Each case is carefully processed manually and polished and bears a engraved serial number.