Omega Constellation 123.10.31.20.01.001Co-Axial Black Dial

Product Overview

The Omega Constellation 123.10.31.20.01.001 is a distinguished automatic watch crafted for women who value precision, heritage, and refined design. As part of the legendary Constellation collection—first introduced by Omega in 1952—this model continues a legacy of Swiss excellence and technical innovation. Designed specifically for the modern woman, it blends timeless elegance with contemporary functionality, making it suitable for both professional environments and everyday wear. The 31mm stainless steel case provides a balanced, wearable size that complements most wrist proportions, while the deep black dial exudes understated sophistication. At its heart lies the Omega Caliber 8520 automatic movement, a self-winding mechanism renowned for its reliability and smooth operation. With a generous 50-hour power reserve, this watch maintains accurate timekeeping even when not worn for short periods. The inclusion of a transparent case back allows a glimpse into the intricate mechanics, highlighting Omega’s commitment to both form and function. Whether paired with business attire or casual weekend wear, this timepiece delivers consistent performance and enduring style.

Key Features

• Automatic Omega Caliber 8520 Movement – A high-performance self-winding movement that harnesses energy from natural wrist motion, eliminating the need for battery replacements while ensuring precise and reliable timekeeping.
• 31mm Stainless Steel Case – Precision-crafted from durable stainless steel, the case offers a refined profile that is neither too delicate nor oversized, making it ideal for daily wear and versatile styling.
• Black Dial with Index Markers – The rich black dial features sleek index hour markers that enhance legibility and contribute to the watch’s clean, minimalist aesthetic.
• Sapphire Crystal – A scratch-resistant sapphire crystal protects the dial, offering exceptional clarity and long-term durability against everyday impacts and abrasions.
• Stainless Steel Bracelet with Deployant Clasp – The integrated bracelet ensures a seamless, polished look, while the secure deployant clasp allows for easy wear and reduces the risk of accidental opening.
• Transparent Case Back – Showcases the intricate Caliber 8520 movement in operation, offering a captivating view of the mechanical craftsmanship and finishing details.
• 100m Water Resistance – Rated for water resistance up to 100 meters, this watch is suitable for swimming, showering, and other surface water activities, providing peace of mind during active use.
• Fixed Bezel – The fixed bezel maintains a streamlined silhouette and adds to the watch’s robust, purposeful design without compromising its elegance.

Technical Specifications

• Brand: Omega
• Series: Constellation (Female)
• Model Number: 123.10.31.20.01.001
• Case Material: Stainless Steel
• Case Diameter: 31 mm
• Dial Color: Black
• Bezel Type: Fixed
• Bracelet Material: Stainless Steel
• Clasp Type: Deployant Clasp
• Crystal: Sapphire
• Movement: Omega Caliber 8520 (Automatic)
• Power Reserve: 50 hours
• Water Resistance: 100 meters
• Case Back: Transparent
• Department: Women’s
• Manufacturer: Omega
• ASIN: B009TC7UBW
• Date First Available: October 19, 2012
• Discontinued Status: No

Benefits & Use Cases

Engineered for daily wear, the Omega Constellation 123.10.31.20.01.001 offers a compelling combination of durability, style, and mechanical integrity. Its 100-meter water resistance rating means it can confidently accompany you during swimming, snorkeling, or everyday exposure to water—without sacrificing its elegant appearance. The sapphire crystal ensures the dial remains pristine, resisting scratches from keys, desks, and other common contact points. The automatic movement appeals to those who appreciate traditional watchmaking, as it requires no battery and is powered entirely by the motion of the wearer’s wrist. The 31mm case size strikes an ideal balance, offering a substantial presence on the wrist while remaining suitable for smaller frames and comfortable under shirt cuffs. The deployant clasp enhances both security and comfort, allowing for easy adjustment without pinching or slipping. The transparent case back not only adds visual interest but also reflects Omega’s pride in its mechanical artistry, making it a point of admiration among watch connoisseurs. Whether worn to the office, during travel, or at social gatherings, this watch delivers consistent performance and enduring appeal.

Important Notes

Warranty information for this product is available through the manufacturer and should be reviewed at the time of purchase. While the model is not discontinued, availability may vary depending on the retailer. This watch holds a position within the broader women’s luxury timepiece category and reflects Omega’s ongoing commitment to quality and innovation. To maintain optimal performance and preserve its value, regular servicing by authorized Omega technicians is recommended. Proper care, including avoiding extreme temperatures and magnetic fields, will help ensure the longevity of both the movement and the exterior finishes.