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OMEGA Constellation Observatory

OMEGA Constellation Observatory

AutomaticYellow Gold

Ref. 140.53.39.21.99.001

Collection: ConstellationCase size: 39.4mmMovement: 8915

Omega's Constellation Observatory 140.53.39.21.99.001 measures 39.4 mm across in Moonshine gold. The case stands 12.23 mm thick with a lug-to-lug span of 47.2 mm, and the domed sapphire crystal carries anti-reflective treatment on both sides. Inside is the self-winding calibre 8915, a Master Chronometer movement certified by METAS with a Co-Axial escapement and resistance to magnetic fields up to 15,000 gauss. Two barrels mounted in series give 60 hours of power reserve. The yellow dial pairs with a time zone function, and a transparent caseback shows the Moonshine gold rotor and Geneva-waved balance bridge. A green alligator leather strap closes with a pin buckle in matching gold. The case carries a 30 metre water resistance rating.

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Last updated 11 Jul 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

CASE

Diameter

39.4mm

Thickness

12.23mm

Lug to Lug

47.2mm

Lug Width

19mm

Case Material

Yellow Gold

Water Resistance

30m

Crystal

Sapphire Crystal

MOVEMENT

Movement Type

Automatic

Caliber

8915

Power Reserve

60h

DIAL

Dial Color

Yellow

BRACELET/STRAP

Bracelet/Strap

Alligator Skin

Clasp Type

Buckle

Clasp Material

Yellow Gold

FEATURES & COMPLICATIONS

ChronometerDisplay backMaster Chronometer

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