Independent watchmaker Lang & Heyne, operating near Dresden in the Ullersdorf district of Radeberg according to Swisswatches-magazine.com, has expanded its classic Friedrich III collection with the new Friedrich III Power Reserve, featuring a complex mechanical upgrade designed to track both remaining energy and winding motion on a single axis. Originally introduced over a decade ago as a time-only dress watch, the model now integrates a differential mechanism developed by the Saxon manufacture, as reported by Monochrome-watches.com.
Mechanical Engineering of the LH Caliber VI-II
The new watch is driven by the manually wound LH Caliber VI-II, measuring 33.5mm in diameter and 4.9mm thick, which beats at 18,000 vibrations per hour and delivers a 55-hour power reserve, according to Monochrome-watches.com. While built upon the established Caliber VI, this iteration introduces a differential mechanism mounted under its own bridge next to the mainspring. Two crown-toothed wheels transmit movements to a satellite gear on a separate rotating axis that serves as the display shaft. Monochrome-watches.com notes that standard power-reserve indicators track only the barrel or the ratchet wheel, whereas this system combines both motions onto a single axis without a stop-work mechanism.
Did you know?
Unlike standard power reserve systems that rely on a stop-work mechanism to halt the mainspring, Lang & Heyne allows the movement to run down naturally, mirroring the behavior on the dial’s graduated scale, as reported by Monochrome-watches.com.
Dial Design and Power Reserve Indication
The display utilizes a three-piece, flat-polished ceramic dial featuring a central decorative medallion finished with a fine givré texture matched to the case metal, as detailed by Monochrome-watches.com. Elongated Roman numerals are engraved into the ceramic and filled with black lacquer, while minute and power-reserve markings appear in red or blue depending on the version. The power reserve indicator sits at 12 o’clock on a graduated scale divided into ten segments, using the German terms “Ab” (empty) and “Auf” (full). The scale begins with a sequence of diminishing dots reminiscent of traditional marine chronometers, paired with a heat-blued steel hand. Broad spade-shaped hands indicate hours and minutes, accompanied by the collection’s signature large running seconds display at 6 o’clock.
Case Specifications and Materials
The fully polished case maintains the Friedrich III proportions at 39.2mm in diameter and 10.5mm in thickness, featuring the brand’s distinct triple-lug construction where the recessed third lug is shorter than the outer pair, according to Monochrome-watches.com. Clients may also request a conventional two-lug configuration. An onion-style crown sits between subtle crown guards at 3 o’clock, flanked by double anti-reflective sapphire crystals with a 30m water resistance rating. The watch is available exclusively in 18ct rose gold priced at EUR 58,900 or 950 platinum priced at EUR 63,500, excluding taxes, and is limited to 25 pieces worldwide, with deliveries slated for the fourth quarter based on demand.
Movement Finishing and Artisanal Production
Visible through the sapphire display back is traditional hand-finishing, including a hand-engraved balance cock, polished bevels, sharp internal angles, and a brilliant-cut diamond end stone over the balance staff, as outlined by Monochrome-watches.com. The movement comprises 174 parts and 27 rubies. Swisswatches-magazine.com notes that Lang & Heyne produces between 150 and 200 timepieces annually due to intensive manufacturing steps, which include using an AMAflex escapement with anti-magnetic properties and lead-free Ecobrass barrels without galvanic coating.
Frequently Asked Questions
What is the power reserve of the Lang & Heyne Friedrich III Power Reserve?
The hand-wound LH Caliber VI-II provides a 55-hour power reserve, operating at a frequency of 18,000 vibrations per hour, according to Monochrome-watches.com.
How is the power reserve displayed on the dial?
The indicator sits at 12 o’clock on a ten-segment graduated scale using the German terms “Ab” and “Auf,” accompanied by a heat-blued steel hand and a sequence of diminishing dots inspired by marine chronometers, as reported by Monochrome-watches.com.
What metals are available for the case?
The timepiece is offered exclusively in 18ct rose gold and 950 platinum, both featuring the brand’s signature triple-lug construction or an optional two-lug setup, according to Monochrome-watches.com.
How many pieces will be produced?
Production of the Friedrich III Power Reserve is strictly limited to 25 pieces globally, with orders currently open and initial deliveries expected in the fourth quarter depending on demand, as stated by Monochrome-watches.com.
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