Omega Speedmaster Speedmaster Professional Moonwatch Moon Flag

Reference 3574.50.00

About this watch

The Omega Speedmaster Professional Moonwatch Moon Flag is a limited-release model that stands out in the vast universe of horology. With its bold design and rich history, it's no wonder that this watch has become a coveted piece for enthusiasts and collectors alike. The black dial, with its striking tachymetric scale, is not just a feast for the eyes but also incredibly practical for measuring speed. Crafted from stainless steel, this timepiece is designed to withstand the rigors of both everyday wear and extraordinary adventures. The Omega caliber 1861 hand-wound movement is a true marvel, known for its reliability and precision. With 18 jewels and a power reserve of 48 hours, it's designed to keep you on time. The chronograph function allows you to measure elapsed time with precision, making it easy to track your timing needs. The watch strikes a balance between presence and wearability, measuring 42 mm in diameter and featuring a stainless steel bracelet that complements its aesthetic while adding to its durability. What truly elevates the Omega Speedmaster Professional Moon Flag is its place in history - as part of the Speedmaster family, it carries the legacy of being the first watch worn on the moon.
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Key Features

  • Limited edition with only one unit available
  • Omega caliber 1861 hand-wound movement with 18 jewels and 48-hour power reserve
  • Chronograph function for precise elapsed time measurement
  • Stainless steel case and bracelet
  • 42 mm diameter and 20 mm lug width
  • 50 meter water resistance
  • Plexi glass crystal
  • Tachymeter bezel

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch Moon Flag
Reference
3574.50.00
Movement
1861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Plexi
Water Resistance
50

Current Listings

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

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

A white panda dial Omega Speedmaster Chronoscope in 43mm size, with minor hairlines on the clasp and bracelet.

  • Condition: Fantastic
  • Diameter: 43mm
Posted at
Dec 3, 2025, 8:26 AM
Active
[WTS] Omega Speedmaster Professional Moonwatch - 311.30.42.30.01.005 - Big Box - Great Condition

Omega Speedmaster Professional Moonwatch - 311.30.42.30.01.005 - Big Box - Great Condition

A highly sought after Omega Speedmaster Professional Moonwatch 'Big Box' collector's set purchased in 2017, showing great pre-owned condition.

  • Condition: great pre-owned condition, some normal wear on the stainless steel strap and minor marks on hesalite crystal
  • Case diameter: 42mm
  • Band material: stainless steel
Posted at
Dec 2, 2025, 10:48 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch – Ref. 145.0022 / 345.0022 – Hesalite – Circa 2005 – Very Clean

Omega Speedmaster Professional Moonwatch – Ref. 145.0022 / 345.0022 – Hesalite – Circa 2005 – Very Clean

This is a full-size 42mm manual-wind Moonwatch in very clean pre-owned condition with Hesalite crystal and strong movement.

  • Condition: Very clean pre-owned condition
  • Movement Type: Manual wind - Caliber 1861
  • Crystal Material: Hesalite
  • Bracelet Type: Stainless steel
Posted at
Dec 2, 2025, 6:16 PM
Active
[WTS] OMEGA Speedmaster Hesalite 3861 May 2023 - $5600

OMEGA Speedmaster Hesalite 3861 May 2023 - $5600

OMEGA - 3861 · $5,600
This Omega Speedmaster Professional, also known as The Moonwatch, features a Hesalite crystal and is from May 2023. It comes with its original box, papers, and manual in excellent condition.

  • Condition: Excellent
  • Year Of Manufacture: 2023
  • Crystal Material: Hesalite
  • Bracelet Adjustment: micro adjust
Posted at
Dec 2, 2025, 2:58 PM
Active
[WTS] November 2025 Omega Speedmaster Sapphire Complete Set *$7,200 + label*

November 2025 Omega Speedmaster Sapphire Complete Set *$7,200 + label*

The watch is a November 2025 Omega Speedmaster Sapphire Complete Set with micro-adjust clasp, featuring all cards included, travel case, and Speedmaster literature.

  • Condition: Brand new, fully stickered and unworn
  • Year: November 2025
  • Micro-adjust clasp: available
  • State: Louisiana
Posted at
Dec 2, 2025, 11:11 AM
Active
[WTS] Omega Speedmaster Professional “Tokyo 2020 Yellow” – Ref. 522.20.42.30.01.001 – Complete Set – $6500

Omega Speedmaster Professional “Tokyo 2020 Yellow” – Ref. 522.20.42.30.01.001 – Complete Set – $6500

This Omega Speedmaster Professional features a 42mm stainless steel case with yellow gold accents and black dial with gold subdials, powered by the classic hand-wound Caliber 1861 movement. It comes with various accessories as part of its complete set.

  • Condition: Very good pre-owned
  • Case diameter: 42mm
  • Bracelet type: stainless steel
  • Movement: hand-wound Caliber 1861
Posted at
Dec 1, 2025, 8:50 PM
Active
[WTS] Omega OEM Speedmaster Moonwatch Professional Black Fabric Strap & Omega OEM Deployant Clasp

Omega OEM Speedmaster Moonwatch Professional Black Fabric Strap & Omega OEM Deployant Clasp

This Omega Speedmaster Moonwatch Professional features a black fabric strap, stainless steel deployant clasp, and comes with original packaging.

  • Condition: As New
  • Strap material: black fabric
  • Clasp type: Omega OEM Stainless Steel Deployant/16mm
  • Lug width: 20mm
Posted at
Dec 1, 2025, 5:05 PM
Active
[WTS] Omega 20mm OEM Integrated Speedmaster Moonwatch Professional Black Rubber Strap (Sold Out) & Omega OEM Deployant Clasp

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

Omega - 032Z017245 · $575
A black rubber strap for the Omega Speedmaster Professional, featuring curved ends and a 20mm width. It is no longer available at Omega AD or online.

  • Strap Ref: 032Z017245 (Black Rubber, curved ends, 20mm/16mm)
  • Clasp Ref: 94521633 (Omega OEM Stainless Steel Deployant/16mm)
  • Fitment: Speedmaster Professional (20mm lug)
Posted at
Dec 1, 2025, 4:48 PM
Active
[WTS][US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

Omega - 3551.20.00 · $4,250
This Omega Speedmaster Broad Arrow features a white dial, 42mm case size, and comes as a full set including the watch, box, both manual, and triple cards.

  • Condition: Fantastic condition with only minor hairlines
  • Case diameter: 42mm
  • Bracelet condition: minor hairlines
Posted at
Dec 1, 2025, 8:25 AM
Active