Lot 366

Pascal Hubert à Rouen, 56 mm, 128 g, circa 1690 ¶
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A very early verge pocket watch "Oignon" with Jacques Gloria's worm-screw regulator and without fusee ¶
Case: silver. Dial: silver, champlevé. Movm.: full plate movement, keywind, barrel, large three-arm steel balance. ¶
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French watchmaker Pascal Hubert was born around 1625 and according to Tardy he became a master in 1649. He worked with Jacques Gloria Sen., who was one of the first makers to create watches without fusee. Hubert died probably circa 1701.¶
Another, similar watch of this type made by Pascal Hubert was sold at an Antiquorum auction on November 14, 1993. The British Museum in London also owns a watch by Pascal Hubert. ¶
Source: https://watch-wiki.org/index.php?title=Hubert,_Pascal_(1), as of 09/07/2018¶
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Jacques Gloria was of the opinion that the extra accuracy the watches gained from the use of the mainspring allowed him to do without the fuse. To balance the varying forces that resulted from the unregulated spring as it ran down, the makers in Rouen only used the central part of it which delivered a more or less constant force for approximately 30 hours. This, however, required a small scale on the back plate (which is missing on this watch) that indicated the running time left for the spring. The endless screw regulator is very similar to that invented by Nathaniel Barrow in England and very typical for the "oignons" without fusee designed in Rouen.¶

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