Die Uhr mit 2 Seiten und aktivem Sternenhimmel: Patek Philippe Sky Moon Tourbillon - Sammler-Uhren

The watch with 2 sides and an active starry sky: Patek Philippe Sky Moon Tourbillon

The highest level of sophistication on both sides:


With its exceptional combination of twelve complications, the Sky Moon Tourbillon combines technical expertise and rare craftsmanship in a rose gold version with brown grand feu enamel dials with champlevé and cloisonné finishes and a hand-engraved case.

The back of the double-sided case shows a celestial map that faithfully reproduces the visible movement of the moon and stars in the northern hemisphere.

The Patek Philippe Sky Moon Tourbillon is one of the most complex and prestigious watches ever created by Patek Philippe – a true haute horlogerie masterpiece that combines mechanics, astronomy, and art in a reversible watch.

Patek Philippe Sky Moon Tourbillon – Ref. 6002 & 6102

Technical highlights

  • Caliber: R TO 27 QR SID LU CL

  • Complications:

    • Tourbillon

    • Minute repeater with cathedral chimes

    • Perpetual calendar with retrograde date display

    • Moon phase display

    • Starry sky with sidereal time

    • Moon rising, setting and transit

    • 24-hour display

    • Double-sided dial

  • Power reserve: approx. 48 hours

  • Case materials: white gold, rose gold, platinum (depending on edition)

  • Diameter: 44 mm

  • Thickness: approx. 17 mm

  • Limitation: Extremely low – few pieces per year

Double-sided magic

🔹 Front – Classic Complications

  • Central time display with perpetual calendar

  • Retrograde date scale

  • Day of the week and month in windows

  • Moon phase at 6 o'clock

  • Tourbillon hidden under the dial – for maximum stability (visible only through the glass back)

🔹 Back – Cosmic spectacle

  • Sky map with starry sky over Geneva

  • Sidereal time (an astronomical time measurement based on the Earth's rotation relative to the stars)

  • Rotating night sky shows the position of stars, moon and sidereal time

Minute repeater – Cathedral tone

  • Two long gongs (cathedral style)

  • Produces a particularly full, warm tone

  • Activated by slider on the side of the housing

  • Plays hour, quarter hours and minutes – traditionally tuned by hand

Artistic engraving and enamel

  • Case completely hand-engraved in relief style

  • Grand Feu enamel on dial, partly champlevé technique

  • Each piece requires several hundred hours of pure engraving and enamel work

🖋️ Each model is a unique piece in series – craftsmanship at museum level.

Price & Market

  • List price (depending on reference): approx. CHF 1.2 – 1.8 million

  • Secondary market:

    • Ref. 6002G / 6002R: often > CHF 2.5 million

    • Particularly rare versions (e.g. with enamel dial or unique pieces) > CHF 3–5 million

  • Auctions:

    • A 2015 copy was auctioned at Phillips for CHF 3.5 million

Quote from Thierry Stern (CEO Patek Philippe):

“The Sky Moon Tourbillon is the watch we build for our descendants.”

Source: AI, patek.com

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