42 HOURS OF CON­STANT FORCE

The Peak Selections: Timepieces - - The Brief -

This watch has a 42-hour power re­serve (the tri­an­gu­lar in­di­ca­tor turns red when the resid­ual power re­serve drops be­low 10 hours). Typ­i­cally, the de­liv­ery of en­ergy from a main­spring does not re­main con­stant through­out the en­tire du­ra­tion of a watch’s power re­serve, which af­fects its ac­cu­racy. In this in­stance, a con­stant-force es­cape­ment al­lows the watch to run at the same rate through­out its power re­serve.

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