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The removal of manual labor does not only reduce the time needed to produce a watch, link but it also contributes to improving the reliability of the movement. SISTEM51's 21,600 bph, 90-hour power reserve, and +/- 10 seconds per day specifications – backed by 17 patents – are made possible by these automations. Contaminants and dusts are link actively removed throughout the manufacturing link process, enabling a mass production of movements with longevity and without overhaul.

Condition-wise you will not find two better examples for sale currently or for a good while. The cases are sharp, the lume is full link and patinated, and link correct Gay Freres-made bracelets are fitted. The estimate link of each is $20,000 to $40,000.