Girard Perregaux

1966 Annual Calendar Equation Of Time

Model #: 49538-52-231-bk6a

Mens Watch | Automatic Movement

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RRP: £27,900

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Warranty All papers included
VAT-free Price £19,763  For shipping outside the UK and qualifying BFPO addresses only

Watch Specifications

Brand Girard Perregaux
Series 1966 Annual Calendar Equation Of Time
Model Number 49538-52-231-bk6a
Size Mens
Case Material 18kt Rose Gold
Dial Colour Grey
Bracelet/Strap Alligator/Crocodile Leather Black
Clasp Tang Buckle
Movement Automatic
Screw-down Crown No
Crystal Scratch Resistant Sapphire
Case Back Transparent
Water Resistance 30m/100ft.
Diameter 40mm
Case Thickness 10.72mm

Watch Description

Polished 18kt rose gold case.

Grey dial with a combination of applied rose gold & white printed index hour markers.

Polished rose gold "leaf shaped" hour & minute hands.

Steel complication hands.

Small seconds sub-dial located at the 9 o'clock position.

Annual Calendar Complication:

Date sub-dial displayed between the 1 & 3 o'clock positions.

Month display via elongated aperture (window) located between the 6 & 8 o'clock positions.

Equation Of Time:

EOT indicator displayed between the 3 & 6 o'clock positions.

An Equation Of Time (aka EOT) complication indicates the difference between "true" solar time (that of nature) and "mean" solar time (that of man). As the earth orbits around the sun in an elliptical (oval) shape & the axis is tilted - there are only 4 days a year when the day is exactly 24 hours long April 15th, June 14th, September 1st and December 24th. All other days of the year the days are shorter or longer - depending in the position of the earth. This watch will show the difference between the "mean" time & the "true" time. Since the of the days are fixed year after year (at the same location) a watch can be manufactured to replicate the correction via a shaped cam which elongates & shortens the days accordingly.

GP Caliber GP03300-0010, beats at 28,800 vph, contains 44 Jewels & has an approximate Power reserve of 46 hours.

This Watch has an alternate part number:
4953852231bk6a

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