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 Broad Arrow – Ref. 3594.50 – Excellent Condition – $3,250

Omega Speedmaster Broad Arrow – Ref. 3594.50 – Excellent Condition – $3,250

Omega - 3594.50 · $3,250
This Omega Speedmaster Broad Arrow is in excellent condition with minimal oxidation on the hands, making it a rare find for this reference.

  • Condition: Excellent
  • Bracelet Material: Stainless steel
  • Case Size: Not specified
Posted at
May 2, 2025, 7:13 AM
Active
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[WTS] Omega Speedmaster Moonwatch 3861 Hesalite Bracelet 310.30.42.50.01.001 2021 $4,650

Omega Speedmaster Moonwatch 3861 Hesalite Bracelet 310.30.42.50.01.001 2021 $4,650

Omega - 310.30.42.50.01.001 · $4,650
This Omega Speedmaster Moonwatch is a 2022 model, featuring a Hesalite crystal and coming with its original bracelet. It has been very lightly used and shows some minor scratches on the case.

  • Condition: Very lightly used with some light scratches on the case
  • Year: 2022
  • Bracelet condition: mint
  • Case material: Hesalite
Posted at
May 2, 2025, 4:37 AM
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[WTS] Omega Speedmaster Broad Arrow 1957 321.10.42.50.01.001 - Automatic Co-Axial 3313

Omega Speedmaster Broad Arrow 1957 321.10.42.50.01.001 - Automatic Co-Axial 3313

Omega - 321.10.42.50.01.001 · $3,799
This Omega Speedmaster Broad Arrow features a 42mm case with a broad arrow handset and red '1957' marking, housing the Omega Caliber 3313C movement with tri-level co-axial escapement. It has a date quickset at 6 o'clock and comes with box and papers.

  • Case size: 42mm
  • Water resistance: 100m
  • Movement: Omega Caliber 3313C (based on Frederic Piguet 1285)
Posted at
May 1, 2025, 8:57 PM
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[WTS] Omega Speedmaster Date 3513.50

Omega Speedmaster Date 3513.50

Omega - 3513.50 · $1,800
A beautiful Omega Speedmaster Date in overall very good condition, with a black dial and comfortable bracelet.

  • Condition: Very good condition with normal wear on the case and bracelet
  • Movement: Cal 1152
  • Bracelet size: 6.75 inches
Posted at
May 1, 2025, 8:30 PM
Active
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Omega Speedmaster Mark II / Mark 2 145.014 Vintage

Omega - 145.014 · $2,975.003
The Omega Speedmaster Mark II / Mark 2 ref. 145.014 from 1970 appears to be in excellent shape, with a strong movement and functioning chronograph.

  • Condition: all original condition with hairline scratches and original brushing
  • Bracelet size: 1158 bracelet sized to 6.9in wrist
  • Movement running status: running strong on timing machine
  • Service history: unknown
Posted at
May 1, 2025, 11:49 AM
Active
View listing on WatchUseek
Omega Speedmaster Mark II / Mark 2 145.014 Vintage

Omega Speedmaster Mark II / Mark 2 145.014 Vintage

Omega - 145.014 · $2,975.003
Early Speedmaster Mark 2 from 1970 in all original condition with no evidence of polishing or touching up. Hands and dial are in great shape with clean and consistent lume.

  • Condition: All original condition with hairline scratches on case, one gouge on bracelet.
  • Case size: 40mm diameter
  • Bracelet size: 6.9 inches
  • Bracelet type: 1158
Posted at
May 1, 2025, 11:48 AM
Active
View listing on WatchUseek
[WTS] Omega Speedmaster Dark Side of the Moon “Apollo 8” Slider

Omega Speedmaster Dark Side of the Moon “Apollo 8” Slider

Omega - 311.92.44.30.01.001 · $8,198
This Omega Speedmaster Dark Side of the Moon 'Apollo 8' is a limited edition timepiece that honors the historic Apollo 8 mission, with a laser-ablated blackened movement and skeletonized dial. The watch features a manual-winding Caliber 1869 movement and is made from ultra-light and scratch-resistant black ceramic.

  • Condition: MINT
  • Case Material: black ceramic
  • Diameter: 44.25mm
  • Movement Type: manual-winding
Posted at
May 1, 2025, 10:41 AM
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[WTS] Omega Speedmaster premoon 105.012- 66CB Serviced

Omega Speedmaster premoon 105.012- 66CB Serviced

Omega - 105.012- 66CB · $8,900
This pre-moon Speedmaster features an original dial with tritium intact and a great bezel with minimal wear. The case has sharp edges and clear polished and brushed parts.

  • Condition: Serviced, good condition with original parts and slight wear on the dial and hands
  • Movement: 321 movement
  • Caseback: Spiralwinder display caseback
Posted at
May 1, 2025, 9:11 AM
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[WTS] New 2025 Omega Speedmaster Moonwatch Professional Hesalite Black Dial Full 4/25 Ref: 310.30.42.50.01.001

New 2025 Omega Speedmaster Moonwatch Professional Hesalite Black Dial Full 4/25 Ref: 310.30.42.50.01.001

Omega - 310.30.42.50.01.001 · $5,799
This Omega Speedmaster Moonwatch Professional features a black lacquered dial and is powered by the manual-winding 3861 movement.

  • Condition: 10/10, Unworn with stickers
  • Movement: Manual wind
  • Diameter: 42mm
  • Water resistance: 50M
Posted at
May 1, 2025, 9:01 AM
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