With A. Lange & Söhne Proof of Origin dated 14 June 2006 confirming the sale of the present watch to an official retailer of Lange Uhren GmbH, Lange 1 Operating Instructions, copy of Wempe servicing invoice dated 2006, presentation box and outer packagings.
Never been used since its overhaul at Wempe in 2006, the present watch is preserved in like new overall condition.
A timepiece of extraordinary quality, the Lange 1A pays tribute to A. Lange & Söhne's historic pocketwatches bearing the distinction "1A" for their ultimate craftsmanship.
Made in a strictly limited edition of only 100 examples in yellow gold distinguished by the hand engine-turned solid 18K gold dials, the "Lange 1A" commemorates the inauguration of the second Lange manufactory building in 1998. The model was in production between 1998 and 1999 and was immediately sold out.
Of superb workmanship, the movement of the Lange 1A is fitted with a gold escape lever and gold escape wheel for which specially hardened white gold is used as it is much more wear-resistant than yellow gold. The pallet, escape wheel and balance bridges are also in gold and individually engraved by hand. The two tandem-wound mainspring barrels provide a power reserve of at least three days and allow a progressive power reserve indication.