Online Catalogue
11 March 2026 - Basel Watch Auction
The Girard-Perregaux 1966 Annual Calendar with Equation of Time, Ref. 49538, is a distinguished timepiece that marries practical functionality with astronomical sophistication. While it doesn’t feature a traditional time zone or GMT complication, its unique combination of an annual calendar and an equation of time display offers both utility and horological intrigue.
Online Catalogue 11 March 2026 - Basel Watch Auction Lot 401
Girard-Perregaux
"1966 Annual Calendar Equation of Time”, Ref. 49538, No. 528
Circa 2014
A 18k rose gold automatic wristwatch
with annual calendar, equation of time,
and power reserve
Case: round shape, snap-on transparent
case back, signed
Dial: slate grey with baton applied
hour markers, subsidiary dials for date
indication and constant seconds, window
aperture for months indication, third
hand with an arrow, sector for equation
of time display
Movement: automatic, 18k gold rotor
engraved Manufacture Girard-Perregaux,
caliber GP033MO, signed
Buckle/Clasp: 18k rose gold buckle
branded
Dimensions: 40 mm
Weight: 78 g
Accessories: international guarantee
dated August 2014, presentation box and
outer packaging
CHF 6'000 – 8'000
The Girard-Perregaux 1966 Annual Calendar with Equation of Time, Ref. 49538, is a distinguished timepiece that marries practical functionality with astronomical sophistication. While it doesn’t feature a traditional time zone or GMT complication, its unique combination of an annual calendar and an equation of time display offers both utility and horological intrigue.