Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel - Moonshine Gold / Silver

Reference 310.20.42.50.02.001

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel - Moonshine Gold / Silver

About this watch

The Omega Speedmaster Professional Moonwatch 310.20.42.50.02.001 is a stunning blend of classic design and cutting-edge technology, featuring a stainless steel case, Moonshine gold accents, and sophisticated chronograph functionality. At the heart of this timepiece is the Omega caliber 3861 movement, certified as a Master Chronometer by METAS and boasting advanced features like a co-axial escapement, silicon balance spring, and magnetic resistance of up to 15,000 gauss. The Speedmaster's ergonomic design ensures it sits comfortably on the wrist, while its 50-meter water resistance makes it practical for daily wear. This watch is incredibly versatile, adapting effortlessly from formal events to casual days out, and its durability is ensured by top-notch materials like ceramic, stainless steel, and Moonshine gold. With a price point that reflects its quality and heritage, the Omega Speedmaster Professional Moonwatch 3861 is an investment in horological history.
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Key Features

  • Omega caliber 3861 movement with co-axial escapement and silicon balance spring
  • 50-meter water resistance for everyday wear
  • Chronograph functionality with precise timing and intuitive layout
  • Moonshine gold accents and stainless steel case for luxurious appearance
  • Sapphire glass for scratch-resistance and durability
  • Master Chronometer certification by METAS for high accuracy and reliability

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel - Moonshine Gold / Silver
Reference
310.20.42.50.02.001
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
42mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] 2024 Omega Speedmaster Moonwatch Professional White Dial 310.30.42.50.04.001 Box and Papers

2024 Omega Speedmaster Moonwatch Professional White Dial 310.30.42.50.04.001 Box and Papers

Omega - 310.30.42.50.04.001 · $7,277
This is a 2024 Omega Speedmaster Moonwatch Professional with a white dial and reference number 310.30.42.50.04.001. It features an excellent condition case, bracelet, and clasp.

  • Condition: Excellent condition with minimal signs of wear
  • Case size: 42mm diameter
  • Water resistance: 50m water resistant
  • Warranty: 5 year warranty remaining
Posted at
May 27, 2026, 1:41 PM
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[WTS] Omega Speedmaster Moonphase 304.33.44.52.01.001

Omega Speedmaster Moonphase 304.33.44.52.01.001

Omega - 304.33.44.52.01.001 · $7,350
This Omega Speedmaster features a moonphase complication, chronograph, and automatic co-axial movement 9904.

  • Condition: Good pre-owned condition
  • Size: 44.25mm diameter
  • Movement: Automatic co-axial movement 9904
  • Strap: Omega leather strap
Posted at
May 27, 2026, 10:18 AM
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[WTS] Omega Speedmaster Reduced Ref. 3510.50 | Early Tritium Dial Variant | $2700 (SERVICED)

Omega Speedmaster Reduced Ref. 3510.50 | Early Tritium Dial Variant | $2700 (SERVICED)

Omega - 3510.50 · $2,700
The Omega Speedmaster Reduced Ref. 3510.50 is a compact 39mm automatic watch with an early tritium dial variant, carrying the classic black dial, tachymeter bezel, and chronograph layout.

  • Condition: Great condition with some use and minor scratches
  • Diameter: 39mm diameter
  • Thickness: 14mm thickness
  • Lug-to-lug: 44mm lug-to-lug length
Posted at
May 27, 2026, 10:03 AM
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[WTS] OEM Omega Speedmaster rubber strap with Omega deployant clasp

OEM Omega Speedmaster rubber strap with Omega deployant clasp

Omega - Speedmaster · $550
This listing is for an OEM Omega Speedmaster rubber strap with deployant clasp that does not fit the seller due to their wrist size.

  • Material: rubber
Posted at
May 27, 2026, 9:30 AM
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[wts] 2025 Omega Speedmaster Racing 329.30.44.51.04.001 $6999

2025 Omega Speedmaster Racing 329.30.44.51.04.001 $6999

Omega - 329.30.44.51.04.001 · $6,999
This Omega Speedmaster Racing Master Chronometer features a stainless steel case and bracelet with a black ceramic bezel ring and includes the famous tachymeter scale filled with white enamel.

  • Condition: Pre Owned, Cosmetic Condition: 9/10
  • Case size: 44 mm diameter
  • Movement: 9900 caliber
  • Power reserve: 60 hours
Posted at
May 26, 2026, 11:43 PM
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[WTS] Omega Speedmaster Professional Moonwatch – Ref. 311.30.42.30.01.005 – $5,250

Omega Speedmaster Professional Moonwatch – Ref. 311.30.42.30.01.005 – $5,250

Omega - Ref. 311.30.42.30.01.005 · $5,250
This Omega Speedmaster Professional Moonwatch is a high-end timepiece known for its accuracy and style.

  • Serial number: available upon request
Posted at
May 26, 2026, 10:00 PM
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[WTS] Omega Speedmaster Professional Moonwatch – Ref. 311.30.42.30.01.005 $5150

Omega Speedmaster Professional Moonwatch – Ref. 311.30.42.30.01.005 $5150

Omega - 311.30.42.30.01.005 · $5,150
A user's Omega Speedmaster Professional Moonwatch, a family heirloom that has been featured on the PrideAndPinion forum.

  • Year Posted On Forum: four years ago
Posted at
May 26, 2026, 9:47 PM
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[WTS] May 2026 Omega Speedmaster Silver Snoopy BNIB 310.32.42.50.02.001 $15,499

May 2026 Omega Speedmaster Silver Snoopy BNIB 310.32.42.50.02.001 $15,499

Omega - 310.32.42.50.02.001 · $15,499
Up for sale is the Omega Speedmaster “Silver Snoopy Award” 50th Anniversary in brand new condition, widely considered one of the most playful and highly coveted special-edition luxury timepieces ever produced by Omega.

  • Condition: Brand new in box with warranty
  • Case size: 42mm diameter
  • Case thickness: 14.4mm
  • Lug width: 20mm
Posted at
May 26, 2026, 5:18 PM
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[WTS] Omega Speedmaster Racing 329.32.44.51.01.001 + FREE OEM Omega Bracelet

Omega Speedmaster Racing 329.32.44.51.01.001 + FREE OEM Omega Bracelet

Omega - 329.32.44.51.01.001 · $5,799
This Omega Speedmaster Racing features a ceramic tachy bezel, METAS-certified Caliber 9900, and one of the best black/orange dials Omega has put out in years. The orange chrono handset and racing minute track give this watch more personality than the standard Speedy lineup.

  • Condition: Excellent overall condition with only light signs of wear
  • Case size: 44.25mm
  • Water resistance: 100m
  • Movement: Co-Axial Master Chronometer Caliber 9900
Posted at
May 26, 2026, 5:04 PM
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