Omega Speedmaster Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Silver / Strap
Reference 3875.30.31
About this watch
The Omega Speedmaster Professional Moonphase Broad Arrow (model 3875.30.31) is a luxury watch that embodies precision, quality, and timeless design. This piece of history is part of the legendary 'Moonwatch' series, which was first worn on the moon during the Apollo missions. The 3875.30.31 model features the Omega caliber 1866 movement, a handwound chronograph movement that showcases exceptional engineering and precision. The watch's combination of white gold and stainless steel gives it a luxurious yet durable feel, while its sapphire glass provides scratch resistance for daily wearers. With a diameter of 42 mm and a lug width of 20 mm, this watch sits comfortably on the wrist, offering a classic look that complements both formal and casual attire. One of the standout features is its moonphase display at the 12 o'clock position, serving as a functional complication that appeals to enthusiasts who appreciate celestial aspects of watchmaking. The chronograph function allows for precise timing, making it practical and fun to use. The Omega Speedmaster Professional Moonphase is water-resistant up to 50 meters, suitable for everyday activities but not recommended for swimming or diving. This model comes with a sturdy strap that ensures a secure fit on the wrist, complementing its overall aesthetic and offering adjustability for different wrist sizes. At a reasonable weight, the 3875.30.31 feels substantial without being cumbersome, striking a perfect balance suitable for both all-day wear and special occasions.
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Key Features
- Handwound chronograph movement (Caliber 1866)
- Moonphase display at 12 o'clock position
- Tachymeter bezel
- Sapphire glass
- Water-resistant up to 50 meters
- Sturdy strap with adjustability
- Reasonable weight and balance
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Silver / Strap
- Reference
- 3875.30.31
- Movement
- 1866
- Movement Features
-
- Hours, Minutes, Small Seconds
- Date
- Chronograph
- Moonphase
- Case
- 42mm
- Dial Color
- Silver
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings

2023 Omega Speedmaster Pro Moonwatch 42mm 310.30.42.50.01.002 Steel Black Dial
This is a 2023 Omega Speedmaster Professional Moonwatch with a stainless steel case and black dial, measuring 8.0inch in diameter on the wrist.
- Condition: Excellent
- Material: Stainless Steel
- Size: 40mm diameter
- Warranty: International Warranty card dated 2023 and Existing Factory warranty

Omega Speedmaster. First Omega In Space. New model! 2024yr! 310.30.40.50.06.001
This Omega Speedmaster First Omega In Space is an updated tribute to the pioneering timepiece worn in space on October 3rd, 1962, and captures the same 2nd generation Speedmaster style in modern form.
- Condition: Like New
- Movement type: Manual-Winding
- Dial color: Blue-Grey
- Bezel material: Aluminum

Omega Speedmaster Racing - 44.25mm - Orange - 329.32.44.51.01.001 (excellent)
This Omega Speedmaster Racing features a 44.25mm stainless steel case and a black and orange dial, with a Master Co-Axial movement.
- Condition: Excellent
- Case size: 44.25mm
- Movement: Master Co-Axial 9900 Chronometer

1998 Omega Speedmaster MK40 Triple Date Ref. 3520.53 with Box
The Omega Speedmaster MK40 Triple Date Ref. 3520.53 is a neo-vintage watch with a colorful dial, known as the 'HODINKEE Mark 40'. It's one of Omega's most complicated watches, featuring a beautiful and unique design.
- Condition: Excellent (little to no signs of wear)
- Movement: Automatic
- Case width: 39mm
- Strap length: 7.25"
Omega Speedmaster Professional Moon Watch Chronograph 3572.50
This Omega Speedmaster Professional Moon Watch Chronograph is a mechanical manual watch with a stainless steel case, chronograph function, and size of 42mm.
- Condition: 95%
- Case material: stainless steel
- Movement type: mechanical manual (1863)
- Size: 42mm

2022 Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 Sapphire
2022 Omega Speedmaster Professional Moonwatch in excellent condition with a full size bracelet.
- Condition: excellent, minor scratches on case and bracelet
- Bracelet type: full size
- Shipping method: FedEx Standard Overnight

Mint Omega SNOOPY Speedmaster 50th Anniversary Oct 2024 FULL SET
A 50th Anniversary Speedmaster Moonwatch with a Silver Snoopy Award, featuring a silver dial with blue subdials and a stainless steel case on a blue nylon fabric strap.
- Condition: Mint
- Case material: Stainless Steel
- Band material: Blue nylon fabric
- Strap type: Tang buckle

Omega Speedmaster Professional Moonphase
Up for sale is an Omega Speedmaster Professional Moonphase reference 3575.20, featuring date, chronograph, tachymeter and moonphase functions in a 42mm case with 18k white gold bezel.
- Condition: excellent
- Case size: 42mm
- Movement: 1866 manual wind movement
- Production years: 2000-2005
Omega Speedmaster Professional Chronograph Moonphase 3576.50
This Omega Speedmaster Professional Chronograph Moonphase features a 42mm stainless steel case and is powered by a mechanical manual movement.
- Condition: 90%
- Size: 42mm diameter
- Case material: Stainless Steel
- Movement type: Mechanical Manual (1866)