Omega Speedmaster Speedmaster Professional Moonwatch
Reference 3870.50.31
About this watch
The Omega Speedmaster Professional Moonwatch (model 3870.50.31) is a masterpiece of watchmaking. This iconic timepiece has been to the moon and back, thanks to its association with the Apollo 11 mission in 1969. At its heart lies the Omega caliber 1861, a hand-wound movement that's both reliable and precise. With a frequency of 21,600 vibrations per hour and a power reserve of 48 hours, this watch is designed to keep you on time for your next adventure. The black dial is elegantly accented by stick and dot indexes, making it both readable and stylish. Its stainless steel case with a round shape and diameter of 42.00 mm exudes sophistication, while the tachymetric bezel adds a sporty edge. Whether you're in a boardroom or at a casual gathering, this watch makes a statement. The Speedmaster's versatility is unmatched, effortlessly transitioning from a dress watch to a casual piece. Pair it with a crisp suit or a relaxed T-shirt, and it fits right in. Its durability and accuracy have made it the perfect companion for astronauts, and its rich heritage is a testament to Omega's engineering prowess.
Key Features
- Omega caliber 1861 hand-wound movement
- 50-meter water resistance
- 42mm stainless steel case with black dial
- Tachymetric bezel
- Chronograph functionality with small seconds, hours, and minutes hands
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch
- Reference
- 3870.50.31
- Movement
- 1861
- Movement Features
-
- Small Seconds, Hours, Minutes
- Chronograph
- Case
- Stainless Steel 42mm
- Dial Color
- Black
- Crystal
- Plexi
- Water Resistance
- 50
Current Listings
![[WTS] 2025 Omega Speedmaster 馃寳 Price Drop!](https://external-preview.redd.it/kdm_Z1SVFTEEkrzPvNs4Z5SP25GgHOUjQaSKDKllLII.jpeg?auto=webp&s=23e9a6b9d3f0361d589406ffb656388e67032fc4)
2025 Omega Speedmaster 馃寳 Price Drop!
This white dial Omega Speedmaster is in perfect condition, as shown in the pictures.
- Condition: Immaculate
- Outer Box: Yes
- Inner Box: Yes
- Operating Booklet: Yes

Omega Speedmaster - Dark Side of the Moon - 311.92.44.51.01.007 ( new / 2025 )
Up for sale is a brand new Omega Speedmaster Moonwatch Dark Side of the Moon / DSOM with Titanium Deployment Clasp, reference # 311.92.44.51.01.007 It comes complete with all boxes, papers, booklets, hang tag and Omega Warranty Card dated April 2025.
- Condition: Brand New
- Case material: Ceramic
- Case size: 44.25mm
- Movement type: Omega Co-Axial Calibre 9300
Omega Speedmaster Moonwatch Professional Co-Axial Master Chronometer Chronograph 42mm 310.30.42.50.04.001
This Omega Speedmaster Moonwatch Professional is a modern version of the classic chronograph, featuring a 42mm steel case and a sapphire crystal.
- Condition: Like New/Unworn
- Case material: Steel
- Bracelet material: Steel
- Crystal material: Sapphire
![[WTS] Omega Speedmaster X-33 *Full Service 6/25*](https://external-preview.redd.it/gL47Twey7_Z8nbIvzhhYnObVKaCPG9y9SA7pl8aG25I.jpeg?auto=webp&s=764dbed31f9423c6e2091f654be06d642ec7c52b)
Omega Speedmaster X-33 *Full Service 6/25*
This Omega Speedmaster X-33 is a recent service with a complete overhaul, making it ready to wear and backed by a 2-year warranty from Omega.
- Condition: pristine condition
- Service Date: 6/25
- Warranty Expires: 6/4/2025
Omega Speedmaster Tuetonic - Black dial (in UK)
This Omega Speedmaster Teutonic features a black dial, manual wind movement, and an integrated bracelet. The watch has a case width of 45mm and a thickness of 12.5mm.
- Condition: Good condition for age, with some scratches and minor wear
- Case Width: 45mm
- Bezel Diameter: 39mm
- Lug To Lug Width: 46mm
![[WTS] Omega Speedmaster Moonwatch Professional 311.30.42.30.01.006 - Box & Papers](https://preview.redd.it/32fw5srema7f1.jpeg?auto=webp&s=78c60453519792365c7d5c9a561b9f2331828b72)
Omega Speedmaster Moonwatch Professional 311.30.42.30.01.006 - Box & Papers
The Omega Speedmaster blends iconic style with top-tier performance. Its 42mm stainless steel case and black tachymeter bezel create a bold, timeless look.
- Condition: great overall condition with minor wear only seen upon close inspection
- Box Papers: true
- Movement: 1863 manual-winding movement
- Case Back Engraving: The First Watch Worn on The Moon
![[WTS] Omega Speedmaster Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001](https://external-preview.redd.it/aWk2OGZrYXJnYTdmMUJDdS0Gi9b6to9zH50ooRDilk955RZG063oY1hvbkQ0.png?format=pjpg&auto=webp&s=f8990b3c97b2062b7246e998bd70578cef64e1f9)
Omega Speedmaster Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001
A rare and exquisite Omega Speedmaster Apollo XVII, a limited edition timepiece that commemorates the 45th anniversary of the final moon landing in 1972. The watch features a polished blue ceramic case, bezel, and dial, as well as 18K yellow gold indexes and hour-minute hands coated in Super-LumiNova.
- Condition: Very good condition with slight imperfections on the dial
- Case size: 42mm diameter
- Water resistance: 50m / 167ft depth rating
- Movement: OMEGA Calibre 1861, Manual-Winding Chronograph Movement
![[WTS] Omega Speedmaster 145.022-74 ST Moonwatch](https://external-preview.redd.it/q-1A_0NaPB6t4ttIVj0IVs1FYG5Sq4sBCFJk5QK7kYw.jpg?auto=webp&s=c8ec868145f5d72ab944eb9f36217524eba644a9)
Omega Speedmaster 145.022-74 ST Moonwatch
A vintage, pristine Omega Speedmaster Professional with a Calibre 861 movement, featuring a moonphase complication and a 1171 bracelet.
- Condition: Vintage Pristine
- Movement: Calibre 861
- Bracelet: Omega 1171
- Crystal: Original
Omega Speedmaster Professional 3861 Hesalite Full set
This Omega Speedmaster Professional is in excellent condition, with a 42mm diameter and Hesalite crystal. It's dated May 2023 and has a screw-in steel caseback.
- Condition: Very good
- Case size: 42mm diameter
- Crystal type: Hesalite
- Water resistance: 50 meters