Unworn, Omega Seamaster Aqua Terra 150M, Ref# 220.55.30.20.61.001, box and papers.

The OMEGA Seamaster Aqua Terra 150M Ref. 220.55.30.20.61.001 is an exquisite ladies' timepiece that perfectly blends the elegance of fine jewelry with OMEGA's latest advancements in Swiss watchmaking. Crafted entirely from luxurious 18K Sedna™ Gold, the 30 mm case is crowned by a breathtaking diamond-set bezel that enhances the watch's refined silhouette with exceptional brilliance. The captivating lagoon green dial features a radiant sun-brushed finish and is adorned with 11 diamond hour markers set in 18K Sedna™ Gold holders, while faceted 18K Sedna™ Gold hands filled with white Super-LumiNova provide outstanding legibility in every lighting condition. A circular date display at 6 o'clock preserves the harmonious symmetry of the dial, and a domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides ensures exceptional clarity and lasting protection. At its heart beats the new OMEGA Co-Axial Master Chronometer Calibre 8751, a self-winding movement certified by METAS for extraordinary precision, reliability, and resistance to magnetic fields up to 15,000 gauss. Featuring a Co-Axial escapement, free-sprung balance with silicon balance spring, and automatic winding in both directions, the movement delivers a 48-hour power reserve and is beautifully displayed through the sapphire exhibition caseback, revealing an 18K Sedna™ Gold rotor and bridges decorated with Geneva waves in arabesque. Completing the watch is an elegant 18K Sedna™ Gold bracelet fitted with OMEGA's butterfly clasp and patented comfort-adjustment system for exceptional wearing comfort. Water-resistant to 150 meters.

Movement

• OMEGA Co-Axial Master Chronometer Calibre 8751
• Swiss self-winding mechanical movement
• METAS-certified Master Chronometer
• Co-Axial escapement with free-sprung balance and silicon balance spring
• Automatic winding in both directions
• Anti-magnetic to 15,000 gauss
• 18K Sedna™ Gold rotor and bridges with Geneva waves in arabesque
• Power reserve: 48 hours
• Functions: Hours, minutes, central seconds, date

Case

• 18K Sedna™ Gold case
• Diamond-set bezel
• Lagoon green sun-brushed dial
• 11 diamond hour markers in 18K Sedna™ Gold holders
• 18K Sedna™ Gold faceted hands with white Super-LumiNova
• Circular date display at 6 o'clock
• Domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides
• Transparent sapphire crystal caseback
• Water resistance: 150 m / 500 ft (15 ATM)

Dimensions

• Case diameter: 30 mm
• Thickness: 10.55 mm
• Lug-to-lug: 36.50 mm
• Between lugs: 14 mm
• Approximate weight: 122 g

Strap

• Integrated 18K Sedna™ Gold bracelet
• 18K Sedna™ Gold butterfly clasp with OMEGA comfort-adjustment system

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We offer a 3-day return period on eligible watches, starting from the date of delivery. To qualify, the watch must be returned in the same condition as received—unworn, unaltered, and with all original packaging, tags, and accessories included.

All returns must be approved in advance. Once received and inspected, refunds are processed promptly back to the original payment method.

For full details on eligibility, conditions, and the return process, please refer to our Return Policy.