Omega 511.5137 Ladies 9ct Yellow Gold – 29mm – Manual Wind Calibre 625

This Omega Reference 511.5137 is a lovely example of Omega’s classic ladies’ dress watch design, presented in a solid 9ct yellow gold case measuring 29mm including the crown. The watch has just returned from a professional polish, giving the gold case a clean, crisp finish while preserving its original lines and character.

Powered by Omega’s dependable Calibre 625, this manual-wind movement offers the traditional, tactile charm of hand-winding, paired with the reliability and precision that the brand is known for.

Key Details

        Reference: 511.5137

• Case: Solid 9ct Yellow Gold
• Size: 29mm (including crown)
• Movement: Manual-wind Omega Calibre 625
• Condition: Fresh professional polish
• Era: Mid-1970s to 1980s
• Dial & Strap: Gold Linen dial Paired With Hirsch Leather Strap 

About the Omega Calibre 625

The Omega Cal. 625 is part of Omega’s respected line of slim, hand-wound movements designed for elegant, smaller case sizes. Despite its thin profile, it’s known for being a robust and reliable calibre with straightforward serviceability.

 Technical Characteristics

          Jewels: 17

• Beat Rate: 21,600 vph
• Power Reserve: ~40 hours
• Diameter: 17.2 mm
• Thickness: Approx. 2.5 mm
• Notable Traits:
  
• Ultra-thin movement suited for dress watches
• Simple, durable construction
• Smooth winding mechanism
• Consistent long-term performance

Collectors appreciate the Cal. 625 for its longevity and the ease with which it can be maintained—an excellent movement choice for vintage gold pieces like this.

Why This Watch Stands Out

 With its freshly polished 9ct gold case, slim proportions, and dependable Omega movement, this piece captures everything appealing about vintage Omega design. It sits beautifully on the wrist, feels refined, and represents a timeless style that remains effortlessly wearable today.