Swiss Detent Chronometer Pocket Watch
Swiss Detent Chronometer Pocket Watch
ITEM-1621-EA$2,250.00
Product Details
Swiss Detent Chronometer Pocket Watch
Sterling silver case features one of the most intriguing free hand, flowing monogram that I have seen in a long time, a different attraction to the watch.
The detent or chronometer escapement is considered the most accurate of the balance wheel escapements, and was used in marine chronometers, although some precision watches during the 18th and 19th century also used it.
The detent is a detached escapement; it allows the balance wheel to swing undisturbed during most of its cycle, except the brief impulse period, which is only given once per cycle (every other swing).[38] Because the driving escape wheel tooth moves almost parallel to the pallet, the escapement has little friction and does not need oiling. For these reasons among others, the detent was considered the most accurate escapement for balance wheel timepieces.[41] John Arnold was the first to use the detent escapement with an overcoil balance spring (patented 1782), and with this improvement his watches were the first really accurate pocket timekeepers, keeping time to within 1 or 2 seconds per day. These were produced from 1783 onwards.
Details:
MAKE
Manufacturer: Unsigned
Country: Switzerland
Type: Man's
Serial #: 51,535
Circa Date: 1890s
CASE
Size: 50mm.
Style: Open Face.
Material: Sterling Silver.
Decorations: Floral decorations and a monogram.
Conditions: C 3 (The case is in Very Good condition)
DIAL
Color: White.
Type: Porcelain.
Numerals: Arabic Numerals.
Hands: Louis XIV Hands.
Conditions: D 2 (The dial is in Perfect condition)
MOVEMENT
Jewels: 19 Jewels.
Setting: Pin Set.
Escapement: Chronometer Escapement.
Material: Gilt.
Layout: Bridge Layout.
Signed: Yes.
Conditions: M 3 (The movement is in Very Good condition)