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 Speedmaster Moonphase Aventurine Dial 03/2025 Brand New - $10,650](https://preview.redd.it/wqdzjv4y6oye1.jpg?width=640&crop=smart&auto=webp&s=2e4d725c216234c00527cd2bb5c359642634db13)
Omega Speedmaster Moonphase Aventurine Dial 03/2025 Brand New - $10,650
The Omega Speedmaster Moonphase features an Aventurine Dial with a blue ceramic finish.
- Condition: Brand New, In Box (BNIB)
- Diameter: 44mm
![[WTS] Omega Speedmaster Moonphase Aventurine Dial 03/2025 Brand New - $10,650](https://preview.redd.it/9bqzm0vu6oye1.jpg?width=640&crop=smart&auto=webp&s=56795cca76c51a27492a9700a1f4cb6cf492a45d)
Omega Speedmaster Moonphase Aventurine Dial 03/2025 Brand New - $10,650
This Omega Speedmaster features an Aventurine dial and comes with a certificate of authenticity.
- Condition: Brand new
- Diameter: 42mm
![[WTS] Uncle Seiko US1479 Bracelet For Omega Speedmaster Professional (2 Clasps Included)](https://preview.redd.it/hcf5emiczmye1.jpg?width=640&crop=smart&auto=webp&s=b12c54bc9abf6e7bf9ec94c4e7b1838498a4932b)
Uncle Seiko US1479 Bracelet For Omega Speedmaster Professional (2 Clasps Included)
Uncle Seiko
- US1479
·
$140
A high-quality bracelet designed for Omega Speedmaster Professional watches, featuring a full bracelet, all links, and two clasps.
- Condition: Like new
- Includes: bracelet, links, pressure-based clasp, button-based clasp, Uncle Seiko bag, 2 x 20mm lugs
- Shipping: CONUS only
![[WTS] Omega Speedmaster Moonwatch Professional Sapphire White Dial, Complete Set](https://preview.redd.it/at3k9m0xymye1.jpg?width=640&crop=smart&auto=webp&s=a1946c5cd540edadbe0df85d389449a00c5b269e)
Omega Speedmaster Moonwatch Professional Sapphire White Dial, Complete Set
The Omega Speedmaster Moonwatch Professional Sapphire White Dial is a 42mm stainless steel watch with a white dial and chronograph function, featuring a tachymetre bezel.
- Condition: Excellent Pre-Owned
- Case size: 42mm diameter
- Bezel type: Tachymetre bezel
![[WTS] Omega Speedmaster. 38mm. Gorgeous lume. Ceramic bezel.](https://preview.redd.it/vqx4e43tnmye1.jpeg?auto=webp&s=f70ef2432b00b443366245d258d29f91d8efd44c)
Omega Speedmaster. 38mm. Gorgeous lume. Ceramic bezel.
A 38mm Omega Speedmaster with a gorgeous lume and grey dial, featuring a ceramic bezel.
- Case size: 38mm diameter
- Band material: AM strap
FSOT- Omega Speedmaster Triple Date Slate Blue Dial
A 38mm Omega Speedmaster Triple Date with a slate blue dial, keeping great time and functioning as it should. The watch features a sapphire crystal, perfect bezel, and original Omega buckle.
- Condition: Very nice, with a few tiny inclusions on the case
- Diameter: 38mm
- Case size: reduced speedy case size
- Lug width: 18mm
Omega Speedmaster Reduced White Dial Automatic 3510.2000
A stainless steel Omega Speedmaster Reduced White Dial Automatic watch, with a mechanical automatic movement and chronograph function.
- Condition: 90%
- Case size: 38mm
- Movement type: Mechanical Automatic
![[WTS] Omega Speedmaster Aventurine Moonphase Date | Fresh Service by Omega w/New OEM integrated strap & clasp](https://preview.redd.it/rnx7v9wmmlye1.jpg?width=640&crop=smart&auto=webp&s=aa4b41574f3146ff360321f799068e613429bd26)
Omega Speedmaster Aventurine Moonphase Date | Fresh Service by Omega w/New OEM integrated strap & clasp
A beautiful Omega Speedmaster Aventurine Moonphase Date watch that features a stunning aventurine dial, moonphase display, and date function.
- Condition: Like new, serviced by Omega
- Case material: oak color
- Case size: not specified
- Dial material: aventurine
![[WTS] Omega Speedmaster Automatic MK40 Day Date Ref 3520.53- Serviced](https://preview.redd.it/ijtjy0rxflye1.png?width=640&crop=smart&auto=webp&s=d12ae77d038b325e733fa0feebd65afb801b9108)
Omega Speedmaster Automatic MK40 Day Date Ref 3520.53- Serviced
A Omega Speedmaster Automatic MK40 Day Date Ref 3520.53, one of the coolest Speedmaster variants, featured in A Man and His Watch.
- Condition: Pre-owned, with wear and dings on the bezel, insert, and case
- Servicing: $875, serviced at a local professional
- Size: 39mm diameter
- Power reserve: 44 hour power reserve