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Extraordinary 18K Gold Case Ladies Pocket Watch with Courful Enamel CA1860
Estimated price for orientation: 3 550 $
Category: Antique
Class:
Description Movement: Mechanical: Hand-winding Closure: Open Face Year of Manufacture: Pre-1920 Features: 12-hour Dial, Cylinder Escapement Brand: J. B. Couris Country Made: France Material: Enamel, 18K Yellow Gold Serial Number: 150
Extraordinary 18K Gold Cloisonne (appearing) 10-Size Open Face Key-wind/Key-set Enamel Pocket Watch & Key
Paris/France; J. B. Couris; Lady’s; Serial # 150; CA 1860
CASE: The 18K Gold 10-size (40-44MM) No. 150 open face case has enamel/cloisonné and signed “Counis.”
DIAL: This silver type dial features Roman numerals and Breguet hands and is silver in color.
MOVT: The 8-jewel No. 150 gilt keyset movement has a cylinder escapement and a bridge-style layout.
CONDITIONS:
C 3 (The case is in very good condition)
D 2 (The dial is in perfect condition)
M 3 (The movement is in very good condition)
R 9 (Rarity on a scale of #1 being very common to #10 being extremely rare)
Experts Opinion: Cloisonne appearing enamels are very rare. The work to do a case such as this one is exceptional. A true collectors dream watch! AI-177-28 Key-wind/Key-set Movements
The very first pocket watches up until the third quarter of the 19th century had key-wind and key-set movements. A watch key was necessary to wind the watch and to set the time. This was usually done by opening the case back and putting the key over the winding-arbor (which was set over the watch's winding-wheel, to wind the mainspring) or by putting the key onto the setting-arbor, which was connected with the minute-wheel and turned the hands. Some watches of this period had the setting-arbor at the front of the watch, so that removing the crystal and bezel was necessary to set the time. This watch includes a reproduction of the correct size key, it is not the original.
Cylinder escapement
The horizontal or cylinder escapement replaced the verge escapement was much thinner than the verge, allowing watches to be made thinner.
Clockmakers found it suffered from excessive wear, so it was not much used during the 18th century, except in a few high-end watches with the cylinders made from ruby.
The French solved this problem by making the cylinder and escape wheel of hardened steel and the escapement was used in large numbers in inexpensive French and Swiss pocketwatches and small clocks from the mid-19th to the 20th century.
Instead of pallets, the escapement uses a cutaway cylinder on the balance wheel shaft, which the escape teeth enter one by one.
Each wedge-shaped tooth impulses the balance wheel by pressure on the cylinder edge as it enters, is held inside the cylinder as it turns, and impulses the wheel again as it leaves out the other side.
The wheel usually had 15 teeth, and impulsed the balance over an angle of 20° to 40° in each direction.It is a frictional rest escapement, with the teeth in contact with the cylinder over the whole balance wheel cycle. Bridge Style Layout
The metal bar which bears the pivot of wheel and is supported at both ends. The bridge style watch has two or three fingers to hold the wheels in place and together are called a bridge. The term bridge (horologically) is one that is anchored at both ends.
CUSTOMER SERVICE: Phone 1-800-424-5353 Contact: Rick Gilbert Hours:9 - 5 EST, Monday - Friday Address: eAshland_net Sarasota Arts & Antique Center 640 South Washington Blvd, Suite 200 Sarasota, FL 34236 INTERNATIONAL CUSTOMERS: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you
Description
| Movement: | Mechanical: Hand-winding | Closure: | Open Face |
| Year of Manufacture: | Pre-1920 | Features: | 12-hour Dial, Cylinder Escapement |
| Brand: | J. B. Couris | Country Made: | France |
| Material: | Enamel, 18K Yellow Gold | Serial Number: | 150 |
Paris/France; J. B. Couris; Lady’s; Serial # 150; CA 1860
CASE: The 18K Gold 10-size (40-44MM) No. 150 open face case has enamel/cloisonné and signed “Counis.”
DIAL: This silver type dial features Roman numerals and Breguet hands and is silver in color.
MOVT: The 8-jewel No. 150 gilt keyset movement has a cylinder escapement and a bridge-style layout.
CONDITIONS:
C 3 (The case is in very good condition)
D 2 (The dial is in perfect condition)
M 3 (The movement is in very good condition)
R 9 (Rarity on a scale of #1 being very common to #10 being extremely rare)
Experts Opinion: Cloisonne appearing enamels are very rare. The work to do a case such as this one is exceptional. A true collectors dream watch! AI-177-28 Key-wind/Key-set Movements
The very first pocket watches up until the third quarter of the 19th century had key-wind and key-set movements. A watch key was necessary to wind the watch and to set the time. This was usually done by opening the case back and putting the key over the winding-arbor (which was set over the watch's winding-wheel, to wind the mainspring) or by putting the key onto the setting-arbor, which was connected with the minute-wheel and turned the hands. Some watches of this period had the setting-arbor at the front of the watch, so that removing the crystal and bezel was necessary to set the time. This watch includes a reproduction of the correct size key, it is not the original.
Cylinder escapement
The horizontal or cylinder escapement replaced the verge escapement was much thinner than the verge, allowing watches to be made thinner.
Clockmakers found it suffered from excessive wear, so it was not much used during the 18th century, except in a few high-end watches with the cylinders made from ruby.
The French solved this problem by making the cylinder and escape wheel of hardened steel and the escapement was used in large numbers in inexpensive French and Swiss pocketwatches and small clocks from the mid-19th to the 20th century.
Instead of pallets, the escapement uses a cutaway cylinder on the balance wheel shaft, which the escape teeth enter one by one.
Each wedge-shaped tooth impulses the balance wheel by pressure on the cylinder edge as it enters, is held inside the cylinder as it turns, and impulses the wheel again as it leaves out the other side.
The wheel usually had 15 teeth, and impulsed the balance over an angle of 20° to 40° in each direction.It is a frictional rest escapement, with the teeth in contact with the cylinder over the whole balance wheel cycle. Bridge Style Layout
The metal bar which bears the pivot of wheel and is supported at both ends. The bridge style watch has two or three fingers to hold the wheels in place and together are called a bridge. The term bridge (horologically) is one that is anchored at both ends.
CUSTOMER SERVICE: Phone 1-800-424-5353 Contact: Rick Gilbert Hours:9 - 5 EST, Monday - Friday Address: eAshland_net Sarasota Arts & Antique Center 640 South Washington Blvd, Suite 200 Sarasota, FL 34236 INTERNATIONAL CUSTOMERS: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you