Single handed verge with rare calendar ring

A late 17thc., single handed London verge, with a good champleve dial, featuring a very rare outer calendar ring.

MOVEMENT : Gilt single hand movement, with verge escapement.
The finely engraved and pierced balance cock has a pierced foot, with two birds engraved to the neck. Four wonderfully ornate pillars, and unusually engraved silver regulator disk.

Running well. The worm screw set up to the mainspring has been replaced with a simple ratchet but otherwise everything appears to be original, and all in good condition

Signed “Pattey, London”.

DIAL : A silver champleve dial, with gilded central disk, gilt calendar ring and blued steel calendar marker. The dial is held to the dial plate by two tapered pins, and a steel screw at 6.

In good condition, with just a little wear and short break to the champleve silver at 6. The calendar ring is functioning correctly, with the small steel marker correctly indicating the date.

Single steel hour hand.

INNER CASE : Silver, with no maker’s mark.

In quite good condition, though with some small dents around the inner rim, a little compression to the band and possibly reinforcement at the stem. The bow is a later replacement. The hinge is fine and the bezel closes correctly. The high dome crystal is good.

OUTER CASE : Brass pair case, with leather covering, and silver rims, pins and beautifully engraved and pierced silver repousse disk to the back. This shows a hunting scene with two dogs and a figure blowing a horn at the centre.

In good condition, though with just some minor losses and shrinkage to the leather.

Abraham Pattey (1627-1702) was of Swiss origin. Another of his watches with astronomical functions is in the Metropolitan Museum of Art, New York.