The dramatic and enduring design of the OMEGA Constellation is characterised by its famous half-moon facets and “claws” on the case.

This 36 mm stainless steel and 18K yellow gold model features a polished bezel set with 38 diamonds, a blue PVD treated dial with sun-brushed finish and a date window at the 6 o'clock position. The hands, OMEGA logo, Constellation star and indexes are all in 18K yellow gold.

On this Constellation, the famous mono-rang bracelet is replaced with a leather strap in the same colour as the dial.

At the heart of this timepiece is the OMEGA Co-Axial Master Chronometer Calibre 8800, visible through the scratch-resistant sapphire crystal.

Features
Anti-magnetic: The movement is unaffected by exposure to strong magnetic fields, even those greater than 1.5 tesla (15,000 gauss).
Chronometer: Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).
Date: The day of the month, displayed in a window on a watch dial at the 3 or 6 o’clock position, or within a subdial at 9 o'clock.
Diamonds: The hardest, most luminous precious stone whose value is calculated according to the 4C criteria: Cut - Carat - Clarity - Color.
Master Chronometer Certified: Guaranteeing the Swiss industry’s highest standard of precision, performance and magnetic-resistance, as set by the Swiss Federal Institute of Metrology (METAS).
Transparent caseback: A transparent caseback - frequently made of sapphire - makes it possible to see the movement inside the watch.

Technical Data
Reference: 131.28.36.20.53.001
Lug‑to‑lug: 39.20 mm
Thickness: 11.70 mm
Case diameter: 36 mm
Case: Steel ‑ yellow gold
Dial colour: Blue
Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance: 5 bar (50 metres / 165 feet)
Total product weight (approx.): 83 g
Calibre: Omega 8800
Movement Type: Self winding
Power reserve: 55 hours

Strap
Strap color: Blue
Strap type: Leather strap
Strap surface: Alligator leather
Strap underside: Non‑grained calf leather
Buckle type: Foldover clasp
Buckle material: Stainless steel