05-06-2010, 10:12 PM
ETA 2892
The 2892 is fitted with top quality components. The 2892 is an automatic winding, twenty-one (21) jewel movement, available in three executions or grades: Elaborated, Top and Chronometer. The key components which differ at the line of demarcation between Elaborated and Top are the pallet stones, balance wheel & hairspring, and the regulator mechanism. To illustrate the differences in accuracy garnered by the successive grades, consider the following specifications:
* the Elaborated grade is adjusted in four positions with an average rate of +/-5 seconds/day, with a maximum daily variation of +/-20 seconds/day;
* the Top grade is adjusted in five positions with an average rate of +/-4 seconds/day, with a maximum daily variation of +/-15 seconds/day.
The Chronometer grade must meet strict standards prescribed by the COSC: an average rate of -4/+6 with a maximum daily variation of +/-5 seconds/day. The wider range for the Chronometer grade is designed to take into account the differences in a watches rate between static positions, as when the tests are performed, and the dynamic positions as when a watch is actually worn. Chronometer grade movements are serial numbered. Moreover, the degree of decoration on the movement's parts, generally an aesthetic improvement, increases with the grade.[7]
The 2892.A2 is regarded by many horologists as being in the same 'quality' range (accuracy and reliability) as the in-house produced Rolex movements.[8] Insofar as accuracy is concerned any movement which is expected to be COSC-certified, or is in fact COSC-certified, must meet the same standards. The ETA 2892.A2 is usually found in the more expensive and prestigious watches and brands. Owing to its relatively slim height of 3.60 mm, the 2892.A2 is a favorite of watch brands that market complicated movements such as Breitling with its trademark chronograph (stop watches). Given the slim dimensions of the 2892, it provides a good platform on which to add or build a chronograph complication. It is also used in IWC's Portofino line without complications simply for its small size.
sakset fra : http://en.wikipedia.org/wiki/ETA_SA
Kort sagt står der, at "Top" grade er bedre justeret end de almindelige 2892....
- Morten
The 2892 is fitted with top quality components. The 2892 is an automatic winding, twenty-one (21) jewel movement, available in three executions or grades: Elaborated, Top and Chronometer. The key components which differ at the line of demarcation between Elaborated and Top are the pallet stones, balance wheel & hairspring, and the regulator mechanism. To illustrate the differences in accuracy garnered by the successive grades, consider the following specifications:
* the Elaborated grade is adjusted in four positions with an average rate of +/-5 seconds/day, with a maximum daily variation of +/-20 seconds/day;
* the Top grade is adjusted in five positions with an average rate of +/-4 seconds/day, with a maximum daily variation of +/-15 seconds/day.
The Chronometer grade must meet strict standards prescribed by the COSC: an average rate of -4/+6 with a maximum daily variation of +/-5 seconds/day. The wider range for the Chronometer grade is designed to take into account the differences in a watches rate between static positions, as when the tests are performed, and the dynamic positions as when a watch is actually worn. Chronometer grade movements are serial numbered. Moreover, the degree of decoration on the movement's parts, generally an aesthetic improvement, increases with the grade.[7]
The 2892.A2 is regarded by many horologists as being in the same 'quality' range (accuracy and reliability) as the in-house produced Rolex movements.[8] Insofar as accuracy is concerned any movement which is expected to be COSC-certified, or is in fact COSC-certified, must meet the same standards. The ETA 2892.A2 is usually found in the more expensive and prestigious watches and brands. Owing to its relatively slim height of 3.60 mm, the 2892.A2 is a favorite of watch brands that market complicated movements such as Breitling with its trademark chronograph (stop watches). Given the slim dimensions of the 2892, it provides a good platform on which to add or build a chronograph complication. It is also used in IWC's Portofino line without complications simply for its small size.
sakset fra : http://en.wikipedia.org/wiki/ETA_SA
Kort sagt står der, at "Top" grade er bedre justeret end de almindelige 2892....
- Morten
mortenb85 [vokal-i-cirkel] gmail.com
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