Product Overview
The Omega Men’s 123.20.38.21.02.002 Constellation Silver Dial Watch is a refined timepiece that blends classic design with precision engineering. Crafted for the discerning man who values both elegance and performance, this watch features a striking two-tone stainless steel and 18kt yellow gold construction. Its silver dial with gold-tone accents exudes sophistication, making it suitable for both formal occasions and everyday wear. Powered by an automatic chronometer movement, it delivers reliable timekeeping backed by Omega’s renowned craftsmanship. This model is part of the iconic Constellation line, known for its distinctive design and enduring appeal.

Key Features
- Two-Tone Stainless Steel and 18kt Yellow Gold Case and Bracelet: The case and bracelet combine durable stainless steel with luxurious 18kt yellow gold bars, offering a balanced look that transitions seamlessly from business meetings to evening events.
- Fixed 18kt Yellow Gold Bezel: The fixed bezel adds a polished, refined edge to the watch, enhancing its overall aesthetic while maintaining a clean, uncluttered profile.
- Silver Dial with Gold-Tone Hands and Index Markers: The high-contrast silver dial features gold-tone hour markers and hands, ensuring excellent readability and a timeless visual appeal.
- Minute Markers Around the Outer Rim: Precision minute markers provide additional functionality for accurate time tracking, ideal for professionals who value punctuality.
- Date Display at 3 O’Clock: A practical date window positioned at the 3 o’clock mark offers everyday convenience without disrupting the dial’s symmetry.
- Automatic Chronometer Movement: Certified as a chronometer, this self-winding movement ensures exceptional accuracy and reliability, meeting stringent precision standards set by COSC.
- Scratch-Resistant Sapphire Crystal: The sapphire crystal protects the dial from daily wear and tear, maintaining clarity and resisting scratches over time.
- Skeleton Case Back: The exhibition case back reveals the intricate mechanics of the movement, appealing to watch enthusiasts who appreciate fine horological craftsmanship.
- Push Button Fold Over Clasp: The secure clasp ensures a comfortable and reliable fit on the wrist, with a sleek profile that complements the bracelet design.
- 100 Meters Water Resistance: With a water resistance rating of 100 meters (330 feet), this watch is suitable for swimming and snorkeling, though not for scuba diving.


Technical Specifications
- Case Diameter: 38.5 mm
- Case Material: Stainless steel and 18kt yellow gold
- Bezel: Fixed, 18kt yellow gold
- Dial Color: Silver
- Hands and Markers: Gold-tone
- Crystal: Scratch-resistant sapphire
- Case Back: Skeleton (exhibition)
- Bracelet: Stainless steel with 18kt yellow gold bars
- Clasp: Push button fold over
- Movement: Automatic chronometer
- Functions: Hours, minutes, seconds, calendar
- Water Resistance: 100 meters / 330 feet
- Model Number: 123.20.38.21.02.002
- Department: Men
- Manufacturer: Omega
- ASIN: B005EC2K84
- Package Dimensions: 10.5 x 7.4 x 4.4 inches; 5 pounds
- Date First Available: January 1, 2007
- Discontinued by Manufacturer: No


Benefits & Use Cases
This Omega Constellation watch is ideal for men seeking a versatile luxury timepiece that performs as well as it looks. Its 38.5 mm case size offers a balanced presence on the wrist, suitable for most men, whether worn under a dress shirt cuff or as a standalone statement piece. The automatic movement eliminates the need for battery changes, making it a practical choice for daily wear. The 100-meter water resistance allows for confidence during water-based activities such as swimming or boating. The combination of stainless steel and gold ensures the watch pairs well with both casual and formal attire, making it a reliable companion for business travel, social events, or weekend outings. The scratch-resistant sapphire crystal and durable construction support long-term use, maintaining the watch’s appearance over years of wear.

Important Notes
While this watch is water resistant to 100 meters, it is not designed for deep diving or high-impact water sports. Avoid pressing buttons or operating the crown while submerged. Regular maintenance, including professional servicing every few years, is recommended to preserve the movement’s accuracy and longevity. The watch comes in original Omega packaging, though specific contents may vary; refer to the manufacturer for detailed warranty coverage. As a discontinued model is not confirmed, availability may depend on current stock. Always purchase from authorized dealers or reputable sources to ensure authenticity and access to service support.