IWC 94800: Difference between revisions

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'''Cal. 94800''' is a specialty high-end [[manufacture]] [[double barrel]] [[tourbillon]] movement produced by [[IWC]] since [[2013]].
 
==Details==
 
IWC has been transitioning to [[in-house]] movements since [[2000]], enhancing the reputation and technical features of their watches. Part of this development includes the production of specialty high-end movements. The [[IWC 94000|Cal. 94000 family]] is the basis for many of these since its launch in [[2011]]. It uses [[double barrel|two mainspring barrels]], providing power for complications including a [[tourbillon]] and specialty [[digital]] time display. This was a departure for the company, which had previously relied on a single barrel design for long power reserve movements but suffered poor [[isochronism]] as a result.
 
'''Cal. 94800''' debuted in [[2013]] powering the [[IWC Ingenieur Constant-Force Tourbillon 5900|Ingenieur Constant-Force Tourbillon, Ref. 5900]]. The two mainspring barrels are coupled, with a [[constant force]] mechanism integrated into the [[tourbillon]] to ensure stability of [[amplitude]]. This mechanism causes the tourbillon to advance once per second, even though the watch [[escapement]], running at 18,000 A/h, "ticks" five times per second. After 48 hours of runtime on a fully-wound mainspring, the constant-force mechanism disengages and the tourbillon reverts to 1/5 second jumps. This continues through 96 hours of runtime.
 
The [[tourbillon]] is located at 9:00 on the dial and provides the running seconds display. A double [[moon phase indicator]] at 1:00 is accurate for 577.5 years before needing correction. A 96 hour [[retrograde]] [[power reserve indicator]] is at 5:00. It is a large movement, measuring 37.8 mm in diameter though it is just 7.7 mm thick.
 
The movement was updated in [[2018]] as '''Cal. 94805''' with a single moon phase display for the [[IWC Portugieser Constant-Force Tourbillon 5902|Portugieser Constant-Force Tourbillon, Ref. 5902]].
 
==Applications==
 
* Cal. 94800
** [[IWC Ingenieur Constant-Force Tourbillon 5900]] (2013-2016)
* Cal. 94805
** [[IWC Portugieser Constant-Force Tourbillon 5902]] (2018)
** [[IWC Big Pilot's Watch Constant-Force Tourbillon 5903]] (2019)
 
{{WD|
'''Description:'''
:[[Hand winding]] [[double barrel]] [[constant-force]] [[tourbillon]] [[manufacture]] movement
 
'''Functions:'''
:Hours, minutes central
:[[Moon phase indicator]] at 1:00
:[[Retrograde]] [[power reserve indicator]] at 5:00
:[[Constant force]] [[tourbillon]] seconds at 9:00
 
'''Data:'''
:Ø 37.8 mm
:Height 7.7 mm
:41 [[jewels]]
:341 components
:18,000 A/h
:[[Power reserve]] 96 hours
 
'''Production period:'''
:[[2013]]-Present
}}
 
==See Also==
* [[IWC 94000]]
 
==Weblinks==
* [https://www.iwc.com/us/en/calibre-family/94000.html Calibre Family 94000], iwc.com
 
[[Category:Movements]]
[[Category:Double barrel movements]]
[[Category:Tourbillon movements]]
[[Category:IWC calibres|94800]]

Latest revision as of 15:14, 23 July 2021

Cal. 94800 is a specialty high-end manufacture double barrel tourbillon movement produced by IWC since 2013.

Details

IWC has been transitioning to in-house movements since 2000, enhancing the reputation and technical features of their watches. Part of this development includes the production of specialty high-end movements. The Cal. 94000 family is the basis for many of these since its launch in 2011. It uses two mainspring barrels, providing power for complications including a tourbillon and specialty digital time display. This was a departure for the company, which had previously relied on a single barrel design for long power reserve movements but suffered poor isochronism as a result.

Cal. 94800 debuted in 2013 powering the Ingenieur Constant-Force Tourbillon, Ref. 5900. The two mainspring barrels are coupled, with a constant force mechanism integrated into the tourbillon to ensure stability of amplitude. This mechanism causes the tourbillon to advance once per second, even though the watch escapement, running at 18,000 A/h, "ticks" five times per second. After 48 hours of runtime on a fully-wound mainspring, the constant-force mechanism disengages and the tourbillon reverts to 1/5 second jumps. This continues through 96 hours of runtime.

The tourbillon is located at 9:00 on the dial and provides the running seconds display. A double moon phase indicator at 1:00 is accurate for 577.5 years before needing correction. A 96 hour retrograde power reserve indicator is at 5:00. It is a large movement, measuring 37.8 mm in diameter though it is just 7.7 mm thick.

The movement was updated in 2018 as Cal. 94805 with a single moon phase display for the Portugieser Constant-Force Tourbillon, Ref. 5902.

Applications

Description:

Hand winding double barrel constant-force tourbillon manufacture movement

Functions:

Hours, minutes central
Moon phase indicator at 1:00
Retrograde power reserve indicator at 5:00
Constant force tourbillon seconds at 9:00

Data:

Ø 37.8 mm
Height 7.7 mm
41 jewels
341 components
18,000 A/h
Power reserve 96 hours

Production period:

2013-Present

See Also

Weblinks