Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman

Reference 310.30.42.50.01.003

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a piece of history wrapped around your wrist, with its rich lineage and modern upgrades capturing the hearts of watch enthusiasts and collectors alike. This manual-winding chronograph movement features a co-axial escapement and silicon balance spring, making it resistant to magnetic fields up to 15,000 gauss. The plexi glass provides a warm, vintage feel that many collectors adore, while the stainless steel case measures 42mm in diameter and has a water resistance of 50 meters. This timepiece is perfect for everyday wear, suitable for both formal and casual occasions. With its stunning design, robust movement, and versatility, it's a celebration of heritage, precision, and style.
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Key Features

  • Omega Caliber 3861 Movement
  • Plexi Glass with Vintage Feel
  • 42mm Stainless Steel Case
  • 50m Water Resistance
  • Manual-Winding Chronograph Function
  • Co-Axial Escapement and Silicon Balance Spring

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman
Reference
310.30.42.50.01.003
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Plexi
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Professional Sapphire Sandwich (2025) – Adjustable Clasp – Near Mint – $6,800

Omega Speedmaster Professional Sapphire Sandwich (2025) – Adjustable Clasp – Near Mint – $6,800

Omega - Speedmaster Professional Moonwatch Sapphire Sandwich · $6,800
The Omega Speedmaster Professional Sapphire Sandwich is a high-end watch with an updated adjustable clasp, offering convenient sizing without tools. The watch features a sapphire crystal and is available in the 2025 model.

  • Condition: Near mint
  • Year: 2025
  • Crystal material: Sapphire
  • Bracelet type: Omega
Posted at
Mar 2, 2026, 8:59 AM
Active
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[WTS] 2026 Omega Speedmaster White Dial 310.32.42.50.04.001

2026 Omega Speedmaster White Dial 310.32.42.50.04.001

Omega - 310.32.42.50.04.001
a 2026 Omega Speedmaster White Dial is being sold in this listing, but no details are provided about its condition or features.

Posted at
Mar 2, 2026, 12:53 AM
Active
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[WTS] Omega Speedmaster “Silver Snoopy Award” 50th anniversary ref 310.32.42.50.02.001

Omega Speedmaster “Silver Snoopy Award” 50th anniversary ref 310.32.42.50.02.001

Omega - 310.32.42.50.02.001 · $15,850
The Omega Speedmaster 'Silver Snoopy Award' 50th anniversary watch features a white and blue combo that is highly desirable.

  • Condition: Unworn
  • Set type: Complete set
Posted at
Mar 1, 2026, 8:34 PM
Active
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[WTS] Omega Speedmaster Moonwatch White Dial 2025 Full Set $8,000 [USA]

Omega Speedmaster Moonwatch White Dial 2025 Full Set $8,000 [USA]

Omega - 310.30.42.50.04.001 · $8,000
A white Omega Speedmaster Moonwatch from the iconic company that sent the first watch to the moon, with minor marks and a full set.

  • Condition: very lightly worn with minor marks
  • Year: 2025
  • Dimensions: 42mm diameter
  • Bracelet size: 7.25"
Posted at
Mar 1, 2026, 4:05 PM
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[WTS] 2025 Omega Speedmaster Professional White 310.30.42.50.04.001 $7,490

2025 Omega Speedmaster Professional White 310.30.42.50.04.001 $7,490

Omega - 310.30.42.50.04.001 · $7,490
The Omega Speedmaster Moonwatch Professional features a glossy white lacquered dial, black markers, and red 'Speedmaster' text, with an updated 3861 movement and a sapphire crystal.

  • Condition: Excellent condition
  • Case Size: 42mm
  • Case Thickness: 13.2mm
  • Lug Width: 20mm
Posted at
Mar 1, 2026, 3:35 PM
Active
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[WTS] Omega Speedmaster 38 Co-Axial Chronograph 324.30.38.50.02.001 Full Set- $3650

Omega Speedmaster 38 Co-Axial Chronograph 324.30.38.50.02.001 Full Set- $3650

Omega - 324.30.38.50.02.001 · $3,650
This Omega Speedmaster 38 Co-Axial Chronograph features a silver dial and is in excellent condition, showing very minimal wear. The watch includes its original certificate of authenticity from Watchfinder.

  • Condition: excellent overall condition with very minimal wear
  • Case Material: stainless steel
  • Bracelet Type: stainless steel
  • Bracelet Condition: brand-new, unworn
Posted at
Mar 1, 2026, 11:03 AM
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[WTS] Omega 3510.21 Speedmaster Reduced Panda ‘Marui’ Japan LE (2,000pcs) — Fullset — $6,300 Shipped

Omega 3510.21 Speedmaster Reduced Panda ‘Marui’ Japan LE (2,000pcs) — Fullset — $6,300 Shipped

Omega - 3510.21 · $6,300
A compact Omega Speedmaster Reduced featuring a white dial and contrasting black sub-dials. The 39mm automatic chronograph is powered by Omega Cal. 3220.

  • Condition: Pre-owned with normal signs of wear consistent with age
  • Case size: 39mm diameter
  • Movement: Omega Cal. 3220
  • Bracelet type: Original Omega stainless steel bracelet
Posted at
Mar 1, 2026, 8:46 AM
Active
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[WTS] OMEGA Speedmaster Moonwatch White Dial Steel Leather 310.32.42.50.04.002

OMEGA Speedmaster Moonwatch White Dial Steel Leather 310.32.42.50.04.002

OMEGA - 310.32.42.50.04.002 · $7,900
This OMEGA Speedmaster Moonwatch features a white dial with contrasting black subdials and a 42mm stainless steel case, paired with a black leather strap.

  • Condition: Excellent
  • Case size: 42mm
  • Material: stainless steel
  • Band material: leather
Posted at
Mar 1, 2026, 8:45 AM
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[WTS] Omega Speedmaster Reduced 3510.50 – Black Dial – Automatic – On Bracelet – $2,850 Shipped

Omega Speedmaster Reduced 3510.50 – Black Dial – Automatic – On Bracelet – $2,850 Shipped

Omega - 3510.50 · $2,850
a Omega Speedmaster Reduced on a bracelet with black dial and automatic movement

  • Case size: 40mm
Posted at
Mar 1, 2026, 4:32 AM
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