Patek Philippe Annual Calendar, 5450 Advanced Research Platinum

Patek Philippe 5450, Ref. 5450P-001, Platinum on a Strap with an Platinum Deployant Buckle, Automatic Movement, Annual Calendar, Day, Date, Month, Moonphases, Power Reserve Indicator, Centered Sweep Seconds Hand, Salmon Dial with Applied Numerals, Diameter: 39 mm, Thickness: 11.2 mm, Sapphire Crystal, Display Back with Magnifier, Water Resistant to 2.5 atm, Baselworld 2008 release from Patek Philippe Advanced Research division. LIMITED EDITION of 300 pieces featuring the exclusive Pulsomax® escapement, escape wheel made of silicon-based Silinvar® and a Spiromax® balance spring also made of Silinvar®. These innovations have resulted in: increased reliability without lubrication; rate accuracy optimization based on improved isochronism; increased efficiency of the Swiss lever escapement; and an increased power reserve (up 30% from more efficient escapement). The result is greater amplitude stability, and longer-term rate accuracy. New with Box and Papers.

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Reference:

5450P-001

Movement:

Automatic

Material:

Platinum

Diameter:

39MM

Thickness:

11.2MM

Condition:

Unworn

EWC#:

13237

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