A. Lange and Sohne Reveals Tourbograph Pour le Merite in Diamonds

Oct 01, 2009
The famous watch manufacturer A. Lange & Sohne is pleased to present an exceptional diamond-studded version of its complex Tourbograph Pour le Merite watch, manufactured against the order of the Parisian jeweler Dubail.

This timepiece stands out due to its unrivalled blend of a split-seconds chronograph, a tourbillon, a power reserve indicator and a fusee-and-chain transmission, which ensures a constant torque delivery.

The A. Lange & Sohne brand will release this one-of-a-kind model in a unique edition for Dubail. The watch price will amount to 1.2 million Euros.

Sculptured in platinum, both the case and the bracelet of the appealing Tourbograph Pour le Merite timepiece from A. Lange & Sohne, demonstrate a true art of precious stones mounting. The case is paved with 201 baguette diamonds, whereas the bracelet exposes 175 gems. The overall weight of the stones totals to 40 carats.

The watch case shows a considerable evolution in terms of setting: alongside with the surfaces of the case lugs and bezel, the baguette diamonds are mounted on the case flanks, chronograph push-pieces as well as the winding crown, which bears the brands signature.

The models dimensions coincide with those of the original Tourbograph watch: it measures 41.2 mm in diameter and 14.3 mm in height. The latter enables the watch to house the extremely complicated hand-wound Calibre L903.0 movement, executed by A. Lange & Sohne in cooperation with Swiss complications specialist Renaud & Papi.

Paved with 45 jewels, this movement is composed of more than 1,000 individual elements. Each of them demonstrates a finish, handcrafted in the best traditions of Saxon fine watch-making. The movement features a balance wheel, beating at the rate of 21,600 vibrations per hour, and offers a 36-hour power reserve.

The sapphire crystal exhibition window in the case-back shows off other enchanting details, the mechanism is distinguished by: German silver bridges, which feature Glashutte ribbing; jewels mounted on gold chatons and steel chronograph levers, which expose chamfered edges and thoroughly performed polish.

The accurate per-minute rotation of the tourbillon, demonstrating such alluring details as a bridge, performed in black polished steel, a screw-adjusted balance with an overcoil hairspring, and diamond mounting stones, is revealed in an oversized section, cut away in a sturdy silver dial.

The A. Lange & Sohne Tourbograph Pour le Merite watch, reviewed by Watches.InfoNIAC.com, offers the splits-seconds chronograph function, which enables the wearer to record two separate intervals of the elapsed time. The function in question is governed by two column wheels.

The fusee-and-chain, consisting of over 600 separate elements, is reminiscent of a bicycle chain. Intricate in its structure, this component can be seen through the exhibition back-case as it accomplishes its slow and constant processes on its steeped cone. This is the precise way how the energy from the mainspring barrel is traditionally moderated and transmitted to the going train.

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posted by: / Oct 01, 2009

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