Omega Constellation Co-Axial Master Chronometer 39 mm Silver Dial (131.55.39.20.52.001)

Description

The dramatic and enduring design of the OMEGA Constellation is characterised by its famous half-moons, “claws” on the case and mono-rang bracelet.

This 39 mm 18K Sedna™ gold model features a diamond-paved bezel, an opaline silvery dial with diamond hour-markers and a date window at the 6 o’clock position. The hands, OMEGA logo, Constellation star and the diamond-holders on the dial are all in 18K Sedna™ gold.

At the heart of this timepiece is the OMEGA Co-Axial Master Chronometer Calibre 8801, visible through the domed 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 case back

  A transparent case back – frequently made of sapphire – makes it possible to see the movement inside the watch.

Technical Data

• Between lugs: 24.2mm
• Bracelet: Sedna™ gold
• Case: Sedna™ gold
• Case diameter: 39mm
• Dial color: Silver
• Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
• Water resistance: 5 bar (50metres / 167 feet)
• Movement type: Self winding

Movement

• Calibre: OMEGA 8801
• Self‑winding movement with Co‑Axial escapement. Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Free sprung‑balance with silicon balance spring, automatic winding in both directions. 18K Sedna™ gold balance bridge and oscillating weight with Geneva waves in arabesque.
• Power reserve: 55 hours
• Type: Self winding

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