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 “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)](https://preview.redd.it/l7nko6q8z4fg1.jpg?width=640&crop=smart&auto=webp&s=29fed46817dc69789e5433f532f660e73883e242)
Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)
This Omega Speedmaster Ed White Ref. 105.003-65 is a highly collectible variant with a stunning brown tropical dial, developed rich patina over time, and matching tritium hands that respond under UV light.
- Condition: Very good condition, with signs of a previous polish
- Size: 39mm
- Year: 1965
- Movement serviced: yes
![[WTS] NEW 2026 Omega Speedmaster Moonwatch Pro 42mm 310.30.42.50.01.002 Black Dial - $7,500](https://preview.redd.it/xvads9uyj4fg1.jpg?width=640&crop=smart&auto=webp&s=f528ccd579e284dda880e12a1d443b42477cd121)
NEW 2026 Omega Speedmaster Moonwatch Pro 42mm 310.30.42.50.01.002 Black Dial - $7,500
A brand new, unworn Omega Speedmaster Moonwatch Professional in stainless steel with a black dial.
- Condition: Brand new/unworn
- Material: Stainless Steel
- Size (diameter): 42mm
- Case size (with links): 8.25in
![[WTS] Omega Speedmaster Moonwatch Professional 42mm White Dial 310.30.42.50.04.001 Complete](https://preview.redd.it/kho3tfve74fg1.jpeg?width=640&crop=smart&auto=webp&s=ca7a2de27a439096b0dffbf26250e8313f3a8027)
Omega Speedmaster Moonwatch Professional 42mm White Dial 310.30.42.50.04.001 Complete
This Omega Speedmaster Moonwatch Professional features a 42mm white dial.
- Condition: In very good condition, rated at 9.7/10
- Box And Papers: true
- Links: removed links included
- Warranty: dated 2024
![[WTS] Omega Speedmaster 38 Co-Axial Chronograph Grey Dial 324.32.38.50.06.001](https://preview.redd.it/fvsv46fl54fg1.jpeg?width=640&crop=smart&auto=webp&s=e2dbb1cc32dd24b67da304afe9d89f1ba4294805)
Omega Speedmaster 38 Co-Axial Chronograph Grey Dial 324.32.38.50.06.001
Omega Speedmaster 38 Co-Axial Chronograph with a grey dial for sale.
- Condition: In very good condition, rated at 9.8/10
- Included Items: inner & outer Omega boxes, manual, microfibre cloth, hang tag, caseback sticker, pictogram card, and warranty card
- Trades Welcome: true
![[WTS] Omega Speedmaster Blue Side of the Moon Aventurine Moonphase - Full Set + Aaron Bespoke Strap, Mint!](https://preview.redd.it/ykzsru1rmzeg1.jpeg?auto=webp&s=a207644167421dde3a6f7f77c58650c00a319463)
Omega Speedmaster Blue Side of the Moon Aventurine Moonphase - Full Set + Aaron Bespoke Strap, Mint!
This Omega Speedmaster Blue Side of the Moon Aventurine Moonphase features a blue ceramic case, aventurine dial, rose gold hands and indices, tachymeter scale, moonphase display, and an Omega 9904 caliber with METAS certification.
- Condition: Mint
- Case size: 44.25mm
- Lug to lug: just under 50mm
- Strap material: python leather
![[WTS] Omega Speedmaster Professional Moonwatch 3573.50](https://preview.redd.it/29n9opk6lyeg1.jpg?width=640&crop=smart&auto=webp&s=6b464bada3844db503598f92fb68f375ab6d82e9)
Omega Speedmaster Professional Moonwatch 3573.50
This Omega Speedmaster Professional Moonwatch is in excellent condition with hardly any signs of wear and all functions working as expected.
- Condition: Excellent
- Payment Methods Accepted: crypto, other payment methods
- Available To Trade For: Tudor, Cartier, Rolex, Omega, Breitling, AP
![[WTS] Omega speedmaster Hesalite 3861, Dated 2024](https://preview.redd.it/z6ga1aov9yeg1.jpg?width=640&crop=smart&auto=webp&s=c2ea9ef7a26e30bc3f0022866ec9f04a545304ab)
![[WTS] Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫](https://preview.redd.it/t1arhm7gaxeg1.jpg?width=640&crop=smart&auto=webp&s=5f047ae80cfe97fa3e53910a8fa19734ae9f5b82)
Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫
This is a rare Omega Speedmaster Moonwatch from 1969, featuring a super tropical brown dial and a blue bezel with dot-over-90. The watch has been professionally serviced and runs properly.
- Size: 42mm
- Year: 1969
- Box: true
![[WTS] Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥](https://preview.redd.it/wcufvky74xeg1.jpg?width=640&crop=smart&auto=webp&s=9b1c6a3cb036dd6cce8ff1605a51e5b8cd7a0d53)
Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥
This Omega Speedmaster Moonwatch presents beautifully in full steel, showcasing a strong and sharp case with thick lugs that retain their original shape. The original step dial displays a warm yellow patina across the hour markers and matching hands, creating a cohesive vintage appeal.
- Condition: Serviced, excellent definition
- Year: 1969
- Size: 42mm diameter
- Movement: 861 caliber