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
![[WTS] Omega Speedmaster ref. 3520.50 Automatic Triple Date](https://preview.redd.it/6lc6nrh4mvxe1.jpeg?auto=webp&s=dd5f70e5ed0007ba52de38b63def86ecc9b0e3de)
Omega Speedmaster ref. 3520.50 Automatic Triple Date
A 39mm automatic Omega Speedmaster with triple date complication, featuring a healthy timegrapher data and functioning chronograph.
- Condition: Minimal signs of wear, honest wear throughout
- Size: 39mm diameter
- Bracelet size: Full-sized
- Box papers: No box or papers included
![[WTS] Omega Speedmaster Triple Date 3521.30](https://preview.redd.it/49xz1epmlvxe1.jpg?width=640&crop=smart&auto=webp&s=8f554e8a4280fae231e7e8acc8444b0b276ab362)
Omega Speedmaster Triple Date 3521.30
A beautiful white Omega Speedmaster Triple Date with a 3 date complication showing the day, date, and month.
- Condition: Very good condition, with some normal wear on the case bezel and bracelet
- Size: 39mm diameter
- Movement: 1150
- Accessories: N/A
![[WTS] Omega Seamaster NTTD on NATO | Omega Speedmaster Moonphase | Tudor Black Bay 58 Burgundy Dial](https://external-preview.redd.it/ZTY4bWZ4bGJodnhlMX2ZAmm3m__UWu54-FfX3UPUvQkTQycMWMcuh2VFgbPU.png?format=pjpg&auto=webp&s=4087ca8c8d5742544a1c4a23d5746ad4c9e664ed)
Omega Seamaster NTTD on NATO | Omega Speedmaster Moonphase | Tudor Black Bay 58 Burgundy Dial
This Omega Speedmaster Moonphase is a high-end watch with a 44.25mm case size, features a moon phase display, and comes with an additional OEM leather strap.
- Condition: Very Good
- Strap: additional OEM leather strap
- Box And Papers: yes
- Case Size: 44.25mm
![[WTS] 4️⃣4️⃣0️⃣0️⃣Omega Speedmaster Moonwatch](https://preview.redd.it/2fk1dosnvuxe1.jpg?width=640&crop=smart&auto=webp&s=d9fd3a577e9d313d603b01dd837a607e5efabc35)
4️⃣4️⃣0️⃣0️⃣Omega Speedmaster Moonwatch
2017 Omega Speedmaster Moonwatch with Haselite crystal and Sapphire crystal exhibition back cover, comes with original caseback, bracelet, and warranty card.
- Bracelet material: Brushed steel
- Crystal type: Haselite
OMEGA Speedmaster Day‑Date 3523.30.00 | Double Boxed + Pictogram Card
The OMEGA Speedmaster Day-Date 3523.30.00 is a luxury watch featuring a clean crystal and dial, with some minor imperfections on the case and bracelet. The movement is strong but running slightly slow.
- Condition: Preowned with small dings and scratches in case and bracelet, movement running slightly slow
- Bracelet size: 7.5in (fits larger side)
- Movement condition: running slowly, could be regulated by watchmaker
- Case/bracelet condition: small dings and scratches, light and easily polishable
Omega Speedmaster - Dark Side of the Moon - 311.92.44.51.01.007 ( new / 2024 )
This Omega Speedmaster Moonwatch Dark Side of the Moon features a Titanium Deployment Clasp and Ceramic Black Case with a 44.25mm diameter.
- Condition: Brand New
- Case material: Ceramic, Titanium
- Movement: Omega Co-Axial Calibre 9300
Omega Speedmaster - FOIS - 310.30.40.50.06.001 ( excellent / 2024 )
This is an excellent condition Omega Speedmaster FOIS 39.7mm Stainless Steel Case with the Omega 3861 Calibre, a First Omega in Space model.
- Condition: Excellent condition
- Case size: 39.7mm diameter
- Caliber: Omega 3861
![[WTS] Omega Speedmaster Reduced 3511.12 Yellow JAPAN 🇯🇵 EXCLUSIVE](https://preview.redd.it/e2mpkxukhtxe1.jpeg?auto=webp&s=48290e5baccab3356aab103ba464c34b8e04602e)
Omega Speedmaster Reduced 3511.12 Yellow JAPAN 🇯🇵 EXCLUSIVE
Omega Speedmaster Reduced, a watch exclusively released in Japan, comes with the original box and booklet, along with a 7-inch bracelet.
- Bracelet length: 7 inches
- Box and booklet included: true
![[WTS] Omega Speedmaster Professional 145.012 Cal. 321](https://preview.redd.it/akmasi6risxe1.jpg?width=640&crop=smart&auto=webp&s=5084d38a38e69ef2ee564931ff119c623b94f235)
Omega Speedmaster Professional 145.012 Cal. 321
This Omega Speedmaster Professional features a Cal. 321 movement and an exhibition caseback. The watch has aged beautifully with a faded grey bezel and dial patina.
- Movement: Calibre 321
- Bracelet: Flat link Uncle Seiko bracelet
- Box: Original 1968 Olympic box (possibly)