jacob and co astronomia replica
47mm; Thickness: 25mm; Material: 18K Rose Gold; Sapphire Apertures on Sides; Case Back: 18K Rose Gold; Bows: 18K Rose Gold lift- out Rotating "bows" for Winding, Time-Setting; Two Wheels on Caseback Sides for Synchronization of the Sidereal Time: Celestial Dial and Oval SkyIndicator; Crystal: Unique Domed Sapphire with Anti-Reflective Treatment;Water resistance: 30m (ISO 2281).
Celestial Dial: Blue Grade 5 Titanium, 18K Gold hand-engraved and applied stars and zodiacal signs; Hour and Minute Subdial: Titanium, HandAngled and Polished, Lacquered Indexes; Differential Gear System; Hands:Hand Finished Blue.
Strap & Clasp:
Alligator;18K Rose Gold Folding Buckle.Limited Edition: 18 Pieces; Individually Numbered Pieces.
1 One sidereal year is the time it takes the earth to orbit the sun with respect to the fixed stars.
2 Sidereal Day= 23.5640916 hours, it is the time it takes the earth to rotate on its axis (relative to vernal equinox).
This product was added to our catalog on Tuesday 10 November, 2020.