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 Date 3513.50 39mm - $1,790](https://preview.redd.it/oc5qjulf31yg1.jpg?width=640&crop=smart&auto=webp&s=64fca99ee0bf29277641943d4647d6ec6d438036)
Omega Speedmaster Date 3513.50 39mm - $1,790
This is an Omega Speedmaster Date 3513.50, a 39mm automatic watch with an Omega Calibre 1152 movement.
- Condition: Very good condition for its age
- Case size: 39mm diameter
- Movement: automatic Calibre 1152
- Bracelet length: up to 7-7.25 inch wrists depending on wrist shape
![[WTs] Omega Speedmaster Moonphase 馃崼](https://preview.redd.it/km3br07d31yg1.jpg?width=640&crop=smart&auto=webp&s=c24507fa01f4bbbe1b6a72c143c68841d787bcf9)
Omega Speedmaster Moonphase 馃崼
This Omega Speedmaster Moonphase is a two-tone model featuring steel and Sedna gold, housed in a 44mm case.
- Condition: Very good condition with some normal wear
- Movement: Cal 9904
- Size: 44mm diameter
![[WTS] Omega. Speedmaster. Reverse Panda. Complete Set. $2099 Only](https://preview.redd.it/0vmmrxn5z0yg1.jpeg?auto=webp&s=8f0565cbe6bfba7bf0f470c37a6542a875880ee8)
Omega. Speedmaster. Reverse Panda. Complete Set. $2099 Only
This Omega Speedmaster is a Reverse Panda model, complete with its original set including warranty, tag, inner and outer box, and two booklets.
- Condition: 7.75/10 with wear around bezel
- Bracelet size: 20 links
- Warranty status: Complete
- Box condition: Inner and Outer Box, 2 booklets
![[WTS] (Omega) Speedmaster Date 3511.50 Full Set $2,099](https://preview.redd.it/1gucvjorv0yg1.jpg?width=640&crop=smart&auto=webp&s=fb469784f41edee17a4cfd89679f79d0f30ddd25)
(Omega) Speedmaster Date 3511.50 Full Set $2,099
For sale is an Omega Speedmaster Date, reference 3511.50, a reduced variant made for the Japanese market. This automatic watch features a 39mm case and 18mm lugs.
- Condition: Excellent external condition, running well internally
- Case size: 39mm diameter
- Lug-to-lug length: 45mm
- Thickness: 13.8mm
![[WTS] Omega Speedmaster Reduced - Mother of Pearl - White Dial - Factory Strap](https://preview.redd.it/dz5tog5830yg1.jpg?width=640&crop=smart&auto=webp&s=1d90129f6a1309a727a43e893e3a63ebe006b906)
Omega Speedmaster Reduced - Mother of Pearl - White Dial - Factory Strap
A rare and unique Omega Speedmaster reduced model with a 39mm case, featuring a stunning Mother of Pearl dial.
- Condition: Good condition for the age
- Case size: 39mm
- Strap type: Factory Omega leather strap
![[WTS] Omega Speedmaster Racing - 32630405001002](https://preview.redd.it/1pb5ivpoxzxg1.jpg?width=640&crop=smart&auto=webp&s=caffe10a1590958fb2b742ef2da1d77d0254e63e)
Omega Speedmaster Racing - 32630405001002
This Omega Speedmaster Racing is in good condition, having been worn a handful of times. It features desk diving scratches on the clasp.
- Condition: Pre-owned, minor scratches
- Scratches location: Clasp
- Shipping discussion possible: true
![[WTS] Omega Speedmaster Moonwatch Hesalite 1861 3570.50.00 ( excellent / 2007 / box and papers )](https://preview.redd.it/0cnmix5ovyxg1.jpg?width=640&crop=smart&auto=webp&s=63126ef6cb3c1d2a3783dfeb47e0aff454ff0253)
Omega Speedmaster Moonwatch Hesalite 1861 3570.50.00 ( excellent / 2007 / box and papers )
This Omega Speedmaster Moonwatch Professional Chronograph 1861 is a 42mm stainless steel watch with Hesalite crystal, reference # 3570.50.00.
- Condition: Excellent condition
- Case size: 42mm diameter
- Movement: 1861 Omega Calibre
![[WTS] Omega Speedmaster Sapphire New 2026, $7500](https://preview.redd.it/qh72hqvuzxxg1.jpg?width=640&crop=smart&auto=webp&s=b2466f9d8bd316366c3e5048f37b9946e025da22)
Omega Speedmaster Sapphire New 2026, $7500
This listing is for a brand new Omega Speedmaster Sapphire, featuring a reference number of 310.30.42.50.01.002 and coming with its original box and warranty.
- Condition: Brand New Condition
- Shipping Cost: $150 for USA
- Payment Methods: Wire or Credit Card (+4.9% & 4 days clearance)
- Warranty Year: 2026
![[WTS] Omega Speedmaster Moonshine Green Dial 2023, $29k+鉁堬笍](https://preview.redd.it/b3acapo8zxxg1.jpg?width=640&crop=smart&auto=webp&s=37413b5f4e0709897748328bd5988e8066a3c3f8)
Omega Speedmaster Moonshine Green Dial 2023, $29k+鉁堬笍
2023 Omega Speedmaster Moonshine Green Dial, with a layer of aftermarket watch protection film on.
- Condition: Preowned Condition