Product Description
The Omega Constellation 123.25.31.20.55.003 is a luxury women’s wristwatch from the Constellation line by Omega, combining stainless steel and yellow 18k gold (two-tone) in a 31 mm case. It features a white mother-of-pearl (“shell”) dial, diamond hour markers and a precious-metal bezel, automatic movement, and dressy-luxury styling.
Key Specifications
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Reference: 123.25.31.20.55.003
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Case Diameter: ~31 mm.
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Case Material: Stainless steel + 18k yellow gold (two-tone) for case and bracelet.
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Dial: White mother-of-pearl (shell) dial with diamond hour markers
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Movement: Automatic movement calibre 8520 from Omega.
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Power Reserve: Approx. 50 hours.
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Water Resistance: 100 m / ~10 bar (for this model).
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Bracelet: Matching two-tone steel/18k yellow gold bracelet.
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Crystal: Scratch-resistant sapphire, likely exhibition case back in many examples so movement visible.





















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