Omega Speedmaster Speedmaster Professional Moonphase / Strap
Reference 3876.50.31
About this watch
The Omega Speedmaster Professional Moonphase is an exquisite blend of precision, technology, and style, boasting a storied history in horology. With its classic yet sporty design, this watch exudes sophistication, featuring a black dial highlighted by the stainless steel case. The stick and dot indexes provide excellent visibility, while the moonphase complication adds a touch of elegance to its sporty demeanor. At its heart lies the Omega caliber 1866, a handwound chronograph movement renowned for precision and reliability. With a power reserve of 45 hours, it's designed to withstand daily wear and tear, making it an excellent choice for both men and women. The watch's durability is further enhanced by its sapphire crystal, ensuring that the beauty of the dial remains unblemished over time. Water-resistant up to 50 meters, this watch is suitable for splashes and brief immersions in water. Whether you're a collector, space enthusiast, or simply looking for a reliable timepiece, the Speedmaster Professional Moonphase ticks all the boxes, offering a perfect blend of functionality, style, and history.
Key Features
- Omega Caliber 1866 Handwound Chronograph Movement
- 42mm Stainless Steel Case with Tachymeter Bezel
- Sapphire Crystal for Scratch-Resistant Durability
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonphase / Strap
- Reference
- 3876.50.31
- Movement
- 1866
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date
- Chronograph
- Moonphase
- Case
- Stainless Steel 42mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings
![[WTS] Omega Speedmaster. Moonwatch + Moonphase. Sapphire Sandwich.](https://preview.redd.it/8x2gt6y5fvng1.jpeg?auto=webp&s=cfef8410991165a1fa70cc31d089d35618795232)
Omega Speedmaster. Moonwatch + Moonphase. Sapphire Sandwich.
The watch is an Omega Speedmaster, also known as a Moonwatch, featuring a sapphire sandwich case.
- Condition: Very clean
- Location: New Jersey, USA
![[WTS] Omega Speedmaster 3570.50-$4200](https://preview.redd.it/q1hwc206cvng1.jpg?width=640&crop=smart&auto=webp&s=99b047bac8f6aa00a6c7892481d0348e2e868235)
Omega Speedmaster 3570.50-$4200
The Omega Speedmaster 3570.50 is a model that comes watch only with original band and Forstner band. It's suitable for everyday wear.
- Condition: Good condition with some normal signs of wear
- Band Count: 2
- Seller Experience: Yes, several sales on AWWC, SBWC, Resco, and eBay
![[WTS] Omega Speedmaster 3861 Sapphire Sandwich - Minty - May 2023 Card (under Omega warranty until 2028) - Quick Adjust Bracelet - Full Kit](https://preview.redd.it/a1fae7lp2vng1.jpg?width=640&crop=smart&auto=webp&s=cdf607bb289172dd85f26c37ed2613ed0f8ff002)
Omega Speedmaster 3861 Sapphire Sandwich - Minty - May 2023 Card (under Omega warranty until 2028) - Quick Adjust Bracelet - Full Kit
A 2023 Omega Speedmaster Moonwatch 3861 sapphire sandwich, in great condition with a full kit and under warranty until 2028. The watch is running accurately at 0 spd.
- Condition: great condition with minor desk dive scratches on the clasp
- Warranty expiration date: May 2028
- Retail price: $9K
![[WTS] Omega Speedmaster Professional Moonwatch Hesalite 3861 - Full set 2022](https://preview.redd.it/5ienk3bwlung1.jpg?width=640&crop=smart&auto=webp&s=9318f58d7489457f59a9414dbfc10dade8a1a616)
![[WTS] NEW 2026 Omega reverse panda Speedmaster Professional](https://preview.redd.it/lz5xrurh6sng1.jpg?width=640&crop=smart&auto=webp&s=289f6a0789e932a33e56edee7cd7beba98ca5a8a)
NEW 2026 Omega reverse panda Speedmaster Professional
This brand-new Omega Speedmaster Professional is in excellent condition and comes with all original packaging.
- Condition: brand new, absolutely mint
- Year of production: 2026
- Case size: 42mm diameter
![[WTS] Omega Speedmaster “Silver Snoopy Award” 50th Anniversary Unworn (2024)](https://preview.redd.it/bhnlqw1moqng1.jpg?width=640&crop=smart&auto=webp&s=41686749764ced8922b9a7d0066d52f2ced3aea8)
Omega Speedmaster “Silver Snoopy Award” 50th Anniversary Unworn (2024)
A 2024 Omega Speedmaster Silver Snoopy Award 50th Anniversary, a highly collectible modern Speedmaster celebrating NASA's Silver Snoopy Award.
- Condition: New / Unworn
- Case size: 42mm diameter
- Movement: Omega Co-Axial Master Chronometer Caliber 3861
- Strap material: Blue nylon
![[WTS] OMEGA Speedmaster 38 Co-Axial Chronograph Men's Watch - 324.30.38.50.02.001](https://preview.redd.it/fir3xqj5oqng1.png?auto=webp&s=36ceac6f8d2f1945111f85e49d16d5364a815e06)
OMEGA Speedmaster 38 Co-Axial Chronograph Men's Watch - 324.30.38.50.02.001
A Omega Seamaster watch, sold as new with original accessories and warranty cards.
- Condition: Pre-owned with minor wear marks on bracelet
- Purchase location: Goldsmiths
- Includes original accessories: yes
![[WTS] Omega Speedmaster 3570.50-$4200](https://preview.redd.it/t4afv7ahnqng1.jpg?width=640&crop=smart&auto=webp&s=22478e795c18225a0ac630b86021c61d8b8bf00d)
Omega Speedmaster 3570.50-$4200
A Omega Speedmaster in good condition, comes with original bracelet and forstner.
- Condition: good
- Seller Type: established eBay account
- Additional Items: eBay authentication card, original bracelet, forstner
![[WTS] Omega Speedmaster Moonwatch Professional Sapphire 3861 (310.30.42.50.01.002) – 2025 Full Set – $6350](https://preview.redd.it/lnvanyoiiqng1.jpg?width=640&crop=smart&auto=webp&s=a1fa728f8578caaf19cb660fcd2da1fad1e05097)
Omega Speedmaster Moonwatch Professional Sapphire 3861 (310.30.42.50.01.002) – 2025 Full Set – $6350
This Omega Speedmaster Moonwatch Professional features the Master Chronometer Calibre 3861, a manual wind movement with 50-hour power reserve and anti-magnetic to 15,000 gauss. The watch has a 42mm stainless steel case and black stepped dial.
- Condition: Excellent overall condition, light signs of wear on the bracelet and clasp
- Movement: Omega Co-Axial Master Chronometer Calibre 3861 (manual wind, 50-hour power reserve, anti-magnetic to 15,000 gauss)
- Case size: 42mm
- Water resistance: 50m