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

Current Listings

Omega Speedmaster. Moonphase. Gorgeous Dial. Clean.

Omega - Speedmaster Moonphase · $4,950

This Omega Speedmaster features a 42mm diameter, moonphase display, and blue hands, with very good lume. The watch runs strong and has a very crisp dial.

Condition: Clean, runs strong
Case Size: 42mm

Posted at

Feb 16, 2026, 6:27 PM

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20mm Horus Rubber Straps for Omega Speedmaster & Moonswatch + other brands (Well below retail)

· $49

Horus Rubber Straps for various brands including Omega Speedmaster and Moonswatch, designed to give a fun pop to these watches.

Condition: Like New
Material: Rubber
Colors: Blue Lavender,Light pink,Red,Translucent Lime Green,Sky Blue,Hot Pink
Compatibility: Omega Speedmaster,Moonswatch,Sinn,Zelos Swordfish,Heuer,Seamaster,IWC

Posted at

Feb 16, 2026, 6:10 PM

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Omega Speedmaster Professional Moonwatch Mint

Omega - 31030425001002 · $6,250

This Omega Speedmaster Professional 'Sapphire Sandwich' model features a caliber 3861 and is a full kit including the watch on bracelet, presentation box, cards, and booklet.

Condition: Mint, like new
Caliber: 3861
Shipping: fully insured within continental US

Posted at

Feb 16, 2026, 2:48 PM

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Omega Speedmaster Professional Moonwatch Hesalite, 4/25 full set, Mint, $5800

Omega - 310.32.42.50.01.001 · $5,800

A legendary Omega Speedmaster Professional Moonwatch featuring the Co-Axial Master Chronometer Caliber 3861, purchased new in April 2025 and remaining in mint condition.

Condition: Mint condition, no signs of wear
Case size: 42mm diameter
Water resistance: 50m depth rating
Crystal material: Hesalite

Posted at

Feb 16, 2026, 2:25 PM

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Omega Speedmaster Professional Moonwatch 310.30.42.50.01.001

Omega - 310.30.42.50.01.001 · $5,800

2023 Omega Speedmaster Professional Moonwatch Hesalite in excellent condition, features a 3861 movement keeping excellent time and comes with additional accessories.

Condition: good
Movement: 3861
Crystal type: Hesalite
Bracelet adjustment: 7.3 inch wrist

Posted at

Feb 16, 2026, 12:39 PM

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OMEGA Speedmaster Date 40mm Full Kit 18k Gold/Steel

OMEGA - 323.21.40.40.02.001 · $3,600

Up for sale is a Omega Speedmaster Date 40mm Steel/Yellow Gold Ref. 323.21.40.40.02.001, This is a full kit.

Case Size: 40mm
Materials: Steel/18k Yellow Gold

Posted at

Feb 16, 2026, 10:39 AM

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Omega Speedmaster Moonphase 304.33.44.52.03 Blue Dial 44.25mm Full Set

Omega - 304.33.44.52.03 · $7,494

The Omega Speedmaster Moonphase features a blue dial, moonphase complication at 6 o'clock, and Co-Axial Master Chronometer automatic movement.

Condition: Very good
Case size: 44.25 mm
Movement type: Co-Axial Master Chronometer automatic

Posted at

Feb 16, 2026, 9:59 AM

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Omega Speedmaster FOIS Numbered Edition 311.32.40.30.01.001 w/ Ed White Mods [USA-TN]

Omega - 311.32.40.30.01.001 · $3,500

This 2014 Omega Speedmaster FOIS features a numbered edition, manual winding movement, and ultra-wearable dimensions of 39.7mm x 19 x 47. The watch has been modified with OEM Speedmaster Professional Moonwatch hands and given a professional patina treatment to give it a vintage aesthetic.

Condition: excellent overall condition with honest light wear
Movement type: manual winding 1861 movement
Water resistance: unknown
Dimensions: 39.7mm x 19 x 47

Posted at

Feb 15, 2026, 6:04 PM

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Omega Speedmaster Broad Arrow 1957 321.10.42.50.01.001 Full Set

Omega - 321.10.42.50.01.001 · $4,100

A modern tribute to the legendary original Speedmaster design, this Omega Speedmaster Broad Arrow 1957 features a black dial and classic Speedmaster styling with a modern 42 mm case for everyday wearability.

Condition: Excellent
Case size: 42 mm diameter
Set: Full set (watch, box, papers, and accessories as originally supplied)

Posted at

Feb 15, 2026, 4:21 PM

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