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.
Buy Now on Jomashop
This is an affiliate link
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 3861 "Sapphire Sandwich" (Ref. 310.30.42.50.01.002) adjustable clasp

Omega Speedmaster Professional 3861 "Sapphire Sandwich" (Ref. 310.30.42.50.01.002) adjustable clasp

Omega - 310.30.42.50.01.002 · $5,900
The Omega Speedmaster Professional 3861 'Sapphire Sandwich' is a highly sought-after chronograph configuration that demands a physical relationship with its mechanical intimacy. The watch features a crisp, metallic ratcheting resonance from the Caliber 3861 and a massive edge-to-edge sapphire caseback offering a mesmerizing view of the movement.

  • Condition: Lightly worn, very sharp lines, flawless finishes, immaculate aluminum tachymeter bezel
  • Bracelet type: Stainless steel
  • Bracelet width tapering: 20mm -> 15mm
  • Movement function: Manual-wind
Posted at
May 27, 2026, 6:56 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit - Fresh Service

Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit - Fresh Service

Omega - 310.30.42.50.01.002 · $6,595
The Omega Speedmaster Professional features a sapphire crystal front and display caseback, showcasing the Omega movement.

  • Condition: Near like-new, lightly pre-owned
  • Case size: 42mm
  • Water resistance: not specified
Posted at
May 27, 2026, 4:15 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Moonwatch Sapphire Sandwich 310.30.42.50.01.002

Omega Speedmaster Moonwatch Sapphire Sandwich 310.30.42.50.01.002

Omega - 310.30.42.50.01.002 · $6,400
This Omega Speedmaster Moonwatch Sapphire Sandwich features a 42mm case, manual-winding Caliber 3861 with 50 hours of power reserve, and comes equipped with the standard brushed and polished OEM Omega "sapphire sandwich" bracelet. It was purchased from an Omega boutique in June 2022.

  • Condition: amazing condition
  • Case diameter: 42mm
  • Case thickness: 13.18mm
  • Lug width: 20mm
Posted at
May 26, 2026, 4:44 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Sapphire - 310.30.42.50.01.002, Full Set, Excellent condition!

Omega Speedmaster Sapphire - 310.30.42.50.01.002, Full Set, Excellent condition!

Omega - 310.30.42.50.01.002 · $6,480
This Omega Speedmaster Sapphire is a classic model with a sapphire sandwich design and is in amazing condition. It presents as new and features a running great movement with no issues.

  • Condition: Excellent, 98%
  • Movement Status: running great
  • Chrono Functionality: works flawlessly
Posted at
May 24, 2026, 3:11 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional (310.30.42.50.01.002)

Omega Speedmaster Professional (310.30.42.50.01.002)

Omega - 310.30.42.50.01.002 · $6,550
This Omega Speedmaster Professional features a black dial, sapphire crystal on a steel bracelet, and is in excellent condition with only a few light marks.

  • Condition: Excellent condition with a few light marks
  • Case Size: 42mm diameter
  • Case Material: Stainless Steel
  • Bracelet Material: Stainless Steel
Posted at
May 23, 2026, 7:27 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 Sapphire Sandwitch

Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 Sapphire Sandwitch

Omega - 310.30.42.50.01.002 · $6,400
The Omega Speedmaster Professional Moonwatch, also known as the Sapphire Sandwich, features a timeless black dial and is powered by the updated Omega Caliber 3861 Master Chronometer movement.

  • Condition: Excellent pre-owned condition
  • Case size: 42mm diameter
  • Dial color: black
  • Crystal type: sapphire (front & exhibition caseback)
Posted at
May 21, 2026, 2:09 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 – 2023 – Sapphire – Full Set

Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 – 2023 – Sapphire – Full Set

Omega - 310.30.42.50.01.002 · $6,799
A manually-wound Omega Speedmaster Professional Moonwatch with a 42mm stainless steel case and black dial, featuring a Master Chronometer certification.

  • Condition: Excellent
  • Case Size: 42mm diameter
  • Water Resistance: unknown
  • Crystal Type: Sapphire
Posted at
May 17, 2026, 6:59 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Sapphire - 310.30.42.50.01.002, Full Set, Excellent condition!

Omega Speedmaster Sapphire - 310.30.42.50.01.002, Full Set, Excellent condition!

Omega - 310.30.42.50.01.002 · $6,540
A classic Omega Speedmaster with a sapphire sandwich design, in excellent condition and fully set.

  • Condition: Excellent, 98%
  • Movement Status: Running great, no issues
  • Chrono Status: Flawless
Posted at
May 17, 2026, 8:25 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit - Fresh Service

Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit - Fresh Service

Omega - 310.30.42.50.01.002 · $6,695
This is a lightly pre-owned Omega Speedmaster Professional in excellent condition, featuring a sapphire crystal front and display caseback.

  • Condition: near like-new
  • Size: 42mm diameter
  • Crystal material: sapphire
  • Movement visibility: display caseback
Posted at
May 16, 2026, 2:52 PM
Active
View listing on r/WatchExchange