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] Omega FOIS Speedmaster 310.30.40.50.06.001](https://external-preview.redd.it/i088-Y1OssZ5AG-RU-IPW0R3ntICGEQcuyhlh-MyfHo.jpeg?auto=webp&s=2e4f0a1fa6cc6f57d458ca84cf136e600dea69fd)
![[WTS] 1997 Omega Speedmaster 'Gemini V' LE of 150 PCS (Ref. 345.0022)](https://preview.redd.it/t0ngd74yii6f1.jpeg?auto=webp&s=7beba2e03f294b61631486f6f95a9bcfbf448d05)
1997 Omega Speedmaster 'Gemini V' LE of 150 PCS (Ref. 345.0022)
This Omega Speedmaster 'Gemini V' LE watch commemorates the NASA Gemini V mission, featuring a unique design with a NASA mission patch in the 9 o'clock sub-dial.
- Condition: Excellent/like new
- Case Size: 42mm
- Bracelet Type: Omega 1499 bracelet
- Bracelet End Pieces: 842
![[WTS] Two Tone Omega Speedmaster Triple Date Moonphase](https://external-preview.redd.it/LPtmDtmcr5ceccbryLfEfNFJXwFHvHuKVVJwuyHxkpU.jpeg?auto=webp&s=0f99953af62e6a25bd99a787d5e8e940d0c5487c)
Two Tone Omega Speedmaster Triple Date Moonphase
A beautiful two-tone Omega Speedmaster triple date moonphase watch with a silky white dial, gold bezel, and moon-phase sub-dial.
- Condition: Good condition with normal wear on the case and bezel
- Movement: Cal 1152
- Size: 39mm diameter
- Case material: Two tone
![[WTS] Two Tone Omega Speedmaster Reduced](https://external-preview.redd.it/w8-wkeNiEyq60tpiHd01NbUeHiv47S--7J_gXy0Zgt4.jpeg?auto=webp&s=0fd98a91dd5016c3da476eea514c628806bc4b0b)
Two Tone Omega Speedmaster Reduced
A two-tone Omega Speedmaster Reduced in overall good condition with a white dial, gold subdials, and an 18k gold bezel.
- Condition: Good condition with wear on the case and bezel
- Movement: Cal 1140
- Case size: 39mm diameter
Omega SPEEDMASTER PROFESSIONAL MOONWATCH 3861 WHITE DIAL 2025 WARRANTY FULL SET
This is a new 2025 model Omega Speedmaster Professional Moonwatch with a 42mm stainless steel case and white dial, featuring a manual-winding chronograph movement with co-axial escapement.
- Condition: Excellent Condition
- Movement: 3861 Manual-Winding Chronograph
- Case material: Stainless Steel
- Diameter: 42mm
![[WTS] Omega Speedmaster Automatic MK40 Day Date Ref 3520.53](https://external-preview.redd.it/7nGkjbMhVxrm84CqOK5ux_m_3x-lP765HQ1Dz5Kr_aU.jpeg?auto=webp&s=914f577263d19c6a84251a5d3b5824ad90e22b02)
Omega Speedmaster Automatic MK40 Day Date Ref 3520.53
One of the coolest Speedmaster variants, featured in A Man and His Watch, with a tritium dial and luminova hands.
- Condition: Pre-owned, with wear and dings on the bezel, insert, and case
- Case size: 39mm diameter
Omega Speedmaster Professional Tokyo 2020 522.30.42.30.03.001
This Omega Speedmaster Professional Tokyo 2020 is a high-end watch that comes with its original boxes and books, but no warranty card. It's in excellent condition.
- Condition: Excellent condition
- Box And Papers: includes
- Warranty Card: no
![[WTS] Omega Speedmaster Professional Sapphire 3861](https://external-preview.redd.it/GFyeMHjiQugc7k3v7DpjwLCL0zKQBy4P6cRRNI8ynoc.jpeg?auto=webp&s=ba20feb41ea99b61fea9993fbc3097cd9d62b82c)
Omega Speedmaster Professional Sapphire 3861
A Omega Speedmaster Professional Sapphire Sandwich sold on an OEM rubber strap, also including an unworn leather strap and full kit of original accessories.
- Condition: Excellent preowned
- Strap included: 2
- Case condition: preowned
Omega Speedmaster - First Omega in Space - FOIS - 310.30.40.50.06.001 ( new )
This Omega Speedmaster 3861 Anniversary Series is a brand new First Omega in Space (FOIS) model, reference # 310.30.40.50.06.001, featuring a stainless steel case and Omega 3861 calibre.
- Condition: Brand New / Complete Set
- Case Size: 39.7mm
- Material: Stainless Steel
- Calibre: Omega 3861