Omega Constellation Ladies Watch 27 mm: Now With Co-Axial Caliber 8521

The dressy Omega Constellation 27 mm line of wristwatches has fairly recently been updated with models that are equipped with high-grade Omega Co-Axial Calibre 8521 automatic movement.

Offering a system of highly efficient bi-directional winding, as well as a free sprung-balance system that features an ultra-light-weight and antimagnetic silicon balance spring, the movement has been here for a while (we, for example, saw this tiny engine in the last year’s Omega Ladymatic DeVille line of ladies watch.)

Although the Ladymatic was offered in a comparatively large rose gold body whole 34 millimeters in diameter, it was clear by the look of its dial that the movement was designed for smaller cases: its date window was closer to the center of the dial than the 11 diamonds that served as hour markers.

Now it is clear that the device was originally designed to power sub-30 mm timekeepers. Like this Omega Constellation 27 mm.

The refreshed line is available in more than three dozens of variations, but this particular version with reference number 123.55.27.20.57.001 looks the most appealing to me.

Coming in a compact, tonneau-shaped body only 27 millimeters in diameter, the watch features an elegant mix of a mirror polished bezel, which is expertly paved with 32 full-cut diamonds that have a total weight of 0.50 carat, and brushed surfaces of the case and elegant bracelet, too, crafted from red gold.

But what makes this device the most attractive is, of course, the dial that features a piece of unique gold-tinted mother-of-pearl. While not looking too intrusive, the dial offers an adequate level of contrast for the polished hands that feature thin patches of white Superluminova on them.

As usual, the dial is set with 11 single-cut diamonds that tip the scales at 0.12 carats and (finally) belong to the same circle as the date window.

Photos: Omega Watches

Omega Constellation Ladies Watch 27 mm (Ref. 123.55.27.20.57.001) specification

Price: Around $25,000
Movement: Automatic, Omega co-axial Caliber 8521, COSC-certified chronometer, in-house, Swiss Made
Number of jewels: 28
Movement frequency: 25,200 vph
Movement decoration: Oscillating weight and the balance bridge in red gold; Geneva waves in arabesque
Functions: Hours, minutes, seconds, date
Power reserve: 50 hours
Case material: Red gold, brushed
Bezel material: Red gold, polished, paved with 32 full-cut diamonds with a total weight of 0.50 carat
Crown material: Matches case
Case shape: Tonneau
Bezel shape: Round
Case size: 27 mm
Case height: N/A
Lug width: N/A
Dial: Gold-tinted mother-of-pearl
Numerals: N/A
Hour markers: 11 single-cut diamonds
Hands: Luminous, red gold
Water resistance: 100 meters
Strap: Bracelet in brushed red gold
Crystal: Sapphire, domed, antireflective coating on both sides
Case back: Sapphire