Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Bracelet

Reference 310.30.42.50.01.002

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Bracelet

About this watch

The Omega Speedmaster Professional Moonwatch, reference 310.30.42.50.01.002, is a masterpiece of horology that embodies the perfect blend of history, function, and style. This iconic watch features a classic round case with a diameter of 42 mm and a height of 13.18 mm, encasing a stunning matte black dial that provides a perfect contrast to the stainless steel exterior. The sapphire crystal glass offers unparalleled scratch resistance and clarity, allowing wearers to enjoy this watch in everyday situations without worrying about damaging the face. At its core is the Omega caliber 3861 movement, an updated version of the previous caliber 861 and 1861, featuring a co-axial escapement and silicon balance spring that enhances accuracy and longevity. This Master Chronometer certified by METAS ensures reliable performance under various conditions, with a power reserve of 50 hours and a frequency of 21,600 vibrations per hour. The Omega Speedmaster isn't just a timekeeper; it's a fully functional chronograph with small seconds, hours, and minutes hands that can easily track elapsed time in any setting. This watch is perfect for daily wear, with a water resistance of 50 meters making it suitable for splashes and brief immersion in water. The stainless steel bracelet is both stylish and comfortable, designed for wearability and featuring solid yet lightweight links that adjust effortlessly to find the perfect fit. Whether you're dressed formally or casually, this watch complements any look and is sure to spark conversations with its iconic design and historical significance.
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MSRP: $8,000
Market Price: $5,921

Key Features

  • 42mm stainless steel case
  • Sapphire crystal glass for scratch resistance
  • Master Chronometer certified Omega caliber 3861 movement
  • Chronograph function with small seconds, hours, and minutes hands
  • Water resistance of 50 meters
  • Stainless steel bracelet with adjustable links
  • Iconic tachymetric scale on the bezel

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Sapphire / Bracelet
Reference
310.30.42.50.01.002
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Professional 42mm 310.30.42.50.01.002 “Sapphire Sandwich” | 2024 Complete Set

Omega Speedmaster Professional 42mm 310.30.42.50.01.002 “Sapphire Sandwich” | 2024 Complete Set

Omega - 310.30.42.50.01.002 · $6,750
2024 Omega Speedmaster Professional 'Sapphire Sandwich' 42mm watch in great condition.

  • Condition: Pre-Owned, slight wear on bracelet and clasp, marks on lugs
  • Bracelet Links: 24
  • Service History: Unknown
  • Amp Error: -1 s/d 345+
Posted at
Jan 21, 2026, 8:07 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional Moonwatch "Sapphire Sandwich" 310.30.42.50.01.002 Brand New Fully Stickered / Triple Boxed

Omega Speedmaster Professional Moonwatch "Sapphire Sandwich" 310.30.42.50.01.002 Brand New Fully Stickered / Triple Boxed

Omega - 310.30.42.50.01.002 · $8,199
The Omega Speedmaster Professional Moonwatch 'Sapphire Sandwich' is a black dial chronograph with sapphire crystal front and back, featuring the iconic tachymeter bezel and trio of subdials. The exhibition caseback shows off the Master Chronometer certified caliber 3861 movement. This watch maintains the asymmetrical lug design and twisted lugs that protect the chronograph pushers.

  • Condition: Brand new - fully stickered
  • Case size: 42mm
  • Bracelet type: Five-link stainless steel
Posted at
Jan 20, 2026, 8:26 PM
Active
View listing on r/WatchExchange
[WTS]🔥OMEGA SPEEDMASTER SAPPHIRE SANDWICH 310.30.42.50.01.002 COMPLETE 1/2026 BRAND NEW/UNWORN🔥

🔥OMEGA SPEEDMASTER SAPPHIRE SANDWICH 310.30.42.50.01.002 COMPLETE 1/2026 BRAND NEW/UNWORN🔥

OMEGA - 310.30.42.50.01.002 · $7,500
This is a brand new, unworn Omega Speedmaster Sapphire Sandwich watch with a beautiful black dial and stainless steel case.

  • Condition: BRAND NEW/UNWORN
  • Case material: Stainless Steel
  • Case size: 42mm diameter
Posted at
Jan 19, 2026, 8:20 PM
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[WTS] 2025 Omega Moonwatch Professional Speedmaster Sapphire Sandwich. Full set! Near New! 310.30.42.50.01.002

2025 Omega Moonwatch Professional Speedmaster Sapphire Sandwich. Full set! Near New! 310.30.42.50.01.002

Omega - 310.30.42.50.01.002 · $6,950
A 2025 Omega Moonwatch Professional Speedmaster Sapphire Sandwich, considered a classic collectors piece with very light hairlines on the clasp. It's been worn only three times and comes with all original packaging.

  • Condition: Near New
  • Worn: 3 times
  • Retail price now: 9k
Posted at
Jan 19, 2026, 1:25 PM
Active
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[WTS] Omega Speedmaster Professional 42mm “Sapphire Sandwich” 310.30.42.50.01.002 - 11/2025 Complete Set

Omega Speedmaster Professional 42mm “Sapphire Sandwich” 310.30.42.50.01.002 - 11/2025 Complete Set

Omega - 310.30.42.50.01.002 · $7,350
This Omega Speedmaster Professional is a 'Sapphire Sandwich' model with a 42mm case, known as the Moonwatch.

  • Condition: Like New
  • Case size: 42mm
  • Service history: Unknown
Posted at
Jan 18, 2026, 6:07 PM
Active
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[WTS] 2021 Omega Speedmaster Professional Moonwatch Sapphire Sandwich $5,999

2021 Omega Speedmaster Professional Moonwatch Sapphire Sandwich $5,999

Omega - 310.30.42.50.01.002 · $5,999
The Omega Speedmaster Moonwatch Professional sapphire sandwich version features a robust and elegant 42mm stainless steel case, updated Caliber 3861 movement, and superior magnetic resistance.

  • Condition: Excellent time keeping with no significant gain or loss
  • Case size: 42mm diameter
  • Case thickness: 13.2mm
  • Lug width: 20mm
Posted at
Jan 15, 2026, 12:27 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Moonwatch Professional 310.30.42.50.01.002 "Sapphire Sandwich."

Omega Speedmaster Moonwatch Professional 310.30.42.50.01.002 "Sapphire Sandwich."

Omega - 310.30.42.50.01.002 · $5,450
The Omega Speedmaster Moonwatch Professional, also known as the 'Sapphire Sandwich', is a modern iteration of the timepiece that went to the moon. It features a sapphire crystal front and caseback, redesigned bracelet, and Co-Axial Master Chronometer movement.

  • Condition: Excellent
  • Case material: Sapphire crystal front and caseback
  • Bracelet condition: Excellent
  • Movement: Co-Axial Master Chronometer
Posted at
Jan 12, 2026, 4:55 PM
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[WTS] Omega Speedmaster Sapphire Sandwich

Omega Speedmaster Sapphire Sandwich

Omega - 31030425001002 · $6,000
A Omega Speedmaster Sapphire Sandwich, a manual winding watch featuring an original box and papers. The watch has a 42mm size.

  • Year: 2025
  • Size: 42mm diameter
  • Bracelet condition: barely used
Posted at
Jan 9, 2026, 4:22 PM
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2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete

Omega - 310.30.42.50.01.002 · $6,195
This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.

  • Condition: Minty fresh
  • Case size: 42mm
  • Year: 2022
  • Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet
Posted at
Apr 7, 2025, 2:59 PM
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View listing on RolexForums