Omega Speedmaster Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Silver / Strap

Reference 3875.30.31

Omega Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Silver / Strap

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.

Buy Now on Jomashop

This is an affiliate link

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

Current Listings

Omega Speedmaster Date Casino | 3210.52 | 40mm

Omega - 3210.52 · $2,499

Additional Details: Omega Speedmaster Casino 40 3210.52 is a 40mm watch with a 7.5 inch bracelet.

Case size: 40mm
Bracelet length: 7.5"
Payment methods: Zelle, Venmo, WU

Posted at

Dec 25, 2025, 4:26 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Professional (31130423001005) Calibre 1861 with Full Set Big Box -$4500

Omega - 31130423001005 · $4,500

This listing is for an Omega Speedmaster Professional Moonwatch purchased in 2021. It features the classic Hesalite dial and comes with a full set of accessories.

Condition: Excellent, normal wear
Bracelet material: stainless steel
Accessories included: NATO Straps, magnifying glass, full presentation box, papers, warranty card, tools

Posted at

Dec 25, 2025, 1:27 AM

Active

View listing on r/WatchExchange

Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002

Omega - 310.30.42.50.01.002 · $5,500

This is the Omega Speedmaster Moonwatch Professional Sapphire Sandwich, a luxury watch featuring high-end materials and craftsmanship.

Condition: Mint
Box and papers: complete set, including warranty card
Links: all links included

Posted at

Dec 24, 2025, 9:33 AM

Active

View listing on r/WatchExchange

[US] Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002

Omega - 329.30.43.51.02.002 · $5,125

This Omega Speedmaster Chronoscope features a 43mm white panda dial, and has been well maintained.

Condition: Fantastic condition with minor hairlines
Case size: 43mm diameter

Posted at

Dec 24, 2025, 5:36 AM

Active

View listing on r/WatchExchange

omega speedmaster Mario. Year-1999. Excellent condition. Box and Papers included

Omega - Marui (Speedmaster) · $4,200

This Omega Speedmaster is a rare Japanese model, known as the Marui, from 1999. It's in great condition with its original box and papers.

Condition: Excellent condition
Year: 1999
Location: Japan

Posted at

Dec 23, 2025, 9:37 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Professional White Dial (Full Set 9/2025)

Omega - 310.32.42.50.04.001 · $7,400

Up for sale is a beautiful Omega Speedy Pro White Dial, it comes with box & papers dated 09/2025 and has been worn only a few times.

Condition: Great condition with minimal wear
Movement type: Manual Wind
Size: 42mm diameter
Accessories included: Box & papers

Posted at

Dec 23, 2025, 8:49 PM

Active

View listing on r/WatchExchange

Omega 20mm OEM Integrated Speedmaster Moonwatch Professional Black Rubber Strap (Sold Out) & Omega OEM Deployant Clasp $550 Shipped

Omega - 032Z017245 · $550

This is a listing for an Omega Speedmaster Moonwatch Professional with a black rubber strap and deployant clasp. The watch features a 20mm lug size.

Material: Black Rubber
Ends: curved
Lug width: 20mm/16mm

Posted at

Dec 23, 2025, 8:36 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Milano-Cortina 2026 LE (BNIB)

Omega - 522.30.38.50.04.001 · $7,800

A special Speedmaster created to celebrate the Milano-Cortina 2026 Winter Games with a distinctive design. This limited edition blends classic Speedy DNA with unique dial and color accents.

Condition: New, unworn (BNIB)
Size: 38mm diameter
Movement: Automatic Cal 3330
Accessories: Box & papers

Posted at

Dec 23, 2025, 7:59 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002

Omega - 310.30.42.50.01.002 · $5,500

This is a mint Omega Speedmaster Moonwatch Professional Sapphire Sandwich with additional accessories including box, warranty cards, outer box, and links.

Condition: mint
Box: yes
Warranty card: 3 cards
Outer box: yes

Posted at

Dec 23, 2025, 5:40 PM

Active

View listing on r/WatchExchange