JLC 630: Difference between revisions

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'''Calibre 630''' was a [[quartz]] watch movement with a mechanical [[chronograph]] developed by [[Jaeger-LeCoultre]] and also used by [[IWC]].
'''Calibre 630''' was a compact [[quartz]] watch movement with a mechanical [[chronograph]] developed by [[Jaeger-LeCoultre]] and also used by [[IWC]].


Introduced in [[1987]], Calibre 630 was the first member in the [[Jaeger-LeCoultre Mechaquartz]] family. It was a complicated movement, with 25 jewels.
==Overview==
 
Introduced in [[1987]], Calibre 630 was the first member in the [[Jaeger-LeCoultre Mechaquartz]] family. It was a complicated movement, with 25 jewels. At the time, it was advertised as a revolutionary thin chronograph, measuring just 23.30 mm diameter and 3.70 mm thick. This made it 1/3 the volume of most contemporary chronograph movements and 40% smaller than the smallest equivalent movement on the market.


There are two motors in the calibre:
There are two motors in the calibre:
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Calibre 630 differed from Calibre 631 in that it included a [[moon phase indicator]].
Calibre 630 differed from Calibre 631 in that it included a [[moon phase indicator]].


Note: There is conflicting information on the quartz frequency, with some sources claiming dual 1 KHz and 4 KHz crystals and others claiming 32 KHz.
Note: There is conflicting information on the quartz frequency, with some sources claiming dual 1 KHz and 4 KHz crystals and others claiming 32 KHz. It is likely this confusion comes from the 1 and 4 Hz motors.


==Applications==
==Applications==
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* [[IWC Porsche Design Titan Moonphase Chronograph]]
* [[IWC Porsche Design Titan Moonphase Chronograph]]
* [[IWC Ladies Da Vinci Moonphase Chronograph]]
* [[IWC Ladies Da Vinci Moonphase Chronograph]]
* [[IWC Pilot's Watch Chronograph Mechaquartz]]


==External Links==
==External Links==
* [http://www.qahill.com/tz/mq/mq.html Mechaquartz Chronographs]
* [http://www.qahill.com/tz/mq/mq.html Mechaquartz Chronographs]
==See Also==
* [[Frédéric Piguet]] [[Meca-Quartz]]
* [[Seiko]] [[Seiko 7A|7A "Mecha-Quartz"]]


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'''Data:'''
'''Data:'''
:H 3.8 mm
:H 3.70 mm
:D 23.3 mm
:D 23.30 mm
:25 jewels
:25 jewels
:233 components
:Frequency 32 KHz
:Frequency 32 KHz



Latest revision as of 15:14, 23 July 2021

Calibre 630 was a compact quartz watch movement with a mechanical chronograph developed by Jaeger-LeCoultre and also used by IWC.

Overview

Introduced in 1987, Calibre 630 was the first member in the Jaeger-LeCoultre Mechaquartz family. It was a complicated movement, with 25 jewels. At the time, it was advertised as a revolutionary thin chronograph, measuring just 23.30 mm diameter and 3.70 mm thick. This made it 1/3 the volume of most contemporary chronograph movements and 40% smaller than the smallest equivalent movement on the market.

There are two motors in the calibre:

  • One powers the main timekeeping hands at a frequency of 1 Hz
  • A second powers the mechanical chronograph at 4 Hz

Since the chronograph is mechanical, it has the same feel as a conventional chronograph movement, including mechanical zero reset. Yet the Mechaquartz was much more compact than a conventional automatic chronograph movement.

Calibre 630 differed from Calibre 631 in that it included a moon phase indicator.

Note: There is conflicting information on the quartz frequency, with some sources claiming dual 1 KHz and 4 KHz crystals and others claiming 32 KHz. It is likely this confusion comes from the 1 and 4 Hz motors.

Applications

Calibre 630 was used in chronograph watches in the 1980's and 1990's, though not as widely as Calibre 631:

External Links

See Also

Manufacturer:

Jaeger-LeCoultre

Description:

Quartz movement with mechanical chronograph

Functions:

Hour, minute hands
Small seconds at 6:00
Moon phase indicator
Chronograph with 30 minute and 12 hour subdials at 9:00 and 3:00, respectively

Data:

H 3.70 mm
D 23.30 mm
25 jewels
233 components
Frequency 32 KHz

Production period:

1987-