101.005, ‘Stealth’ Lange 1, Solid Caseback, Platinum

This ref. 101.005 is a First Generation Lange 1, produced within the earliest years after A. Lange & Söhne's rebirth and fitted with the closed, solid platinum caseback that defines the early production years. Moreover, it is one of very few watches from these early years for which a sapphire caseback was additionally produced at the special request of its original owner. The 101.005 is the original 'Stealth' Lange 1: a platinum case over a rhodié solid-silver dial with rhodium-gold hands, entirely monochromatic. It was one of just three references in the debut Lange 1 lineup of 1994, and the only one in platinum. Fewer than 100 examples are conservatively estimated to have been produced.

On 7 December 1990, exactly 145 years after Ferdinand Adolph Lange founded his workshop in Glashütte, Walter Lange and Günter Blümlein registered Lange Uhren GmbH and began rebuilding German fine watchmaking from nothing. Four years of development culminated on 24 October 1994, when the first collection was presented at the Dresden Residenzschloss: the Saxonia, Arkade, Tourbillon 'Pour le Mérite', and Lange 1. The entire initial allocation of 123 watches had already been claimed days earlier, at a preview held in Glashütte on 19–20 October for twelve retailers from Germany, Austria, and Switzerland; the final pieces were assigned by drawing lots. In a detail typical of Blümlein's precision, every date display at the launch was set to 25 so the watches would read correctly in the following day's newspapers.

Of that quartet, the Lange 1 established the brand's design identity. Its asymmetric dial follows the rule of thirds, with the centers of the displays arranged on the points of an isosceles triangle and proportioned around the golden ratio, so that a seemingly eccentric layout resolves into order: no indication overlaps another. The outsize date was drawn directly from the five-minute clock of Dresden's Semper Opera House, built in 1841 by Johann Christian Friedrich Gutkaes with his student F. A. Lange.

At launch, the Lange 1 came in three references: the 101.001 in yellow gold with champagne dial, the 101.002 in yellow gold with argenté dial and blued hands, and the 101.005 in platinum, priced at DM 39,000 against DM 27,000 for the gold models.

The solid caseback places this watch in a narrow production window. In 1995, Lange introduced sapphire display backs under separate references (101.021, 101.022, and 101.025 for the platinum), and the closed-back references were phased out by 1996–1997. Lange has never published production figures by reference, but collector estimates put total solid-caseback Lange 1 output across all references at under 300 pieces. The platinum 101.005, the most expensive of the three and the least frequently encountered, is believed to account for a fraction of that number—the rarest configuration of the First Generation Lange 1.

First Generation examples carry further distinguishing details. Early dials render 'Made in Germany' in a smaller sans-serif font, where later dials spread the text in the house serif typeface—a change that also applies to the 'Doppelfederhaus' and 'AUF/AB' text. There are likewise differences in the umlaut of 'Glashütte' and in the positioning of 'I/SA' (in Sachsen), and early date windows and appliques show softer, more rounded profiles than the machine-crisp later production. Inside, the earliest movements—reportedly around the first 2,000—were fitted with a Breguet overcoil hairspring, later abandoned for a flat spring.

The calibre L901.0 was the first movement of the reborn manufacture, its designation recording the year development began: 1990. Its gear train derives from the Jaeger-LeCoultre 822—a sister brand under Blümlein's LMH group—but bears little resemblance to the ébauche after the rework performed in Glashütte to serve the off-center dial. It comprises 365 components and 53 jewels, including 9 screwed gold chatons, with a twin mainspring barrel delivering 72 hours of reserve at 21,600 vph. The architecture set the template for every Lange movement since: an untreated German silver three-quarter plate, blued screws, hand-engraved balance cock, and broad anglage throughout. Distinctive to the L901.0 are what collectors call the 'islands', two separate bridges set into cutouts in the three-quarter plate for the keyless works and seconds, each with its own beveled edges. The L121.1 that replaced it in 2015 did away with these hard-to-manufacture details, further distinguishing first generation examples.

Blümlein remarked in the early years, 'I want a Lange watch to give the same feeling as closing a Mercedes door.' The mass of the three-level platinum case, 38.5mm across and 9.8mm thick with its notched, individually finished lugs, delivers exactly that. This is the foundation of modern Lange in its most discreet form: a solid caseback, a platinum case, and a dial that gives nothing away.

This 101.005 presents in excellent overall condition. The case itself is remarkably sharp with perfect bevels and well-preserved hallmarks. There are light signs of wear and hairlines on the bezel, commensurate with occasional careful use. The dial is unmarked, with lovely light patina on the rhodié finish silver. The set includes the comprising inner and outer box, Guarantee card from Sincere, instruction manual, and clasp. The original strap is the only thing which has become separated, though the watch includes its original platinum clasp. The calibre L901.0 is running well in specification on our timing equipment. It comes on the pictured strap.

This example is modelled on an average-sized 7-inch wrist.