Omega Speedmaster Professional Moonwatch ref. 310.30.42.50.01.001 on wrist, arms crossed

Guide: Omega Speedmaster Reference Numbers Explained

From four random digits to a 14-digit codification
Robert-Jan Broer
5
Tudor Black Bay 54 in water banner
Three Times Tudor Got The Design Brief Completely Right
Henry Black
40
Panerai Luminor PAM01710, PAM01711, and PAM01714 lined up, flat-lay
Exploring New Territory With The 42mm Panerai Luminor PAM01710, PAM01711, And PAM01714
Jorg Weppelink
12
The Bianchet Tonneau Ultrafino Ceramic Skeleton Deep Blue and White side by side
Mathematical Horological Beauty: Hands-On With The Bianchet Tonneau UltraFino Ceramic Skeleton Deep Blue And White
Lex Stolk
10
Shadow Icons: The Underappreciated References — Audemars Piguet Royal Oak Offshore
Lex Stolk
21
Sketches of the original Audemars Piguet Royal Oak Offshore
Sunday Morning Showdown: Orient Star Sakigake Three Hand Vs. Tissot Gentleman 38mm
Orient Star
Tissot
Tissot Gentleman 38mm vs. Orient Sakigake Three Hand pocket shot collage
Bone-Chilling News: Charlie Adds Five Updated Concordia GMT Watches To Its Lineup
Lex Stolk
9
The Charlie Concordia GMT in the Arctic
Latest →
Load more
Videos Visit channel →
Our Favorite Vintage Rolex Models
  • The Vintage Watches We'd Buy Under €5,000

    The Vintage Watches We'd Buy Under €5,000

    September 10, 2026 | 39:38
  • The Best Watches Of 2026 So Far

    The Best Watches Of 2026 So Far

    September 03, 2026 | 48:11
  • How Microbrands Have Changed The Game

    How Microbrands Have Changed The Game

    August 27, 2026 | 41:57
Editors
Robert-Jan Broer
Robert-Jan Broer
Guide: Omega Speedmaster Reference Numbers Explained
Jorg Weppelink
Jorg Weppelink
Exploring New Territory With The 42mm Panerai Luminor PAM01710, PAM01711, And PAM01714
Walid Benla
Walid Benla
Both Online And Offline: The New H. Moser & Cie. Off-Grid Is The Digital Watch For Enthusiasts
Lex Stolk
Lex Stolk
Mathematical Horological Beauty: Hands-On With The Bianchet Tonneau UltraFino Ceramic Skeleton Deep Blue And White
Michael Stockton
Michael Stockton
Harnessing Nature: The Awake Sơn Mài Frosted Leaf Blood Moon, Storm, And Lagoon
Daan de Groot
Daan de Groot
No Rush, Here’s The Anoma A1 Core Collection In Abyss Blue And Stone Gray
Essential
Omega Speedmaster Calibre 321 movement

The Definitive Modern Speedmaster — Six Years With The Calibre 321

Would I buy it again today?
Robert-Jan Broer
34
The Quintessential Modern Speedmaster Watches header image

The Quintessential Modern Steel Omega Speedmaster Watches

There are no bad Speedmasters...but some are better than others
Robert-Jan Broer
68
Popular
Does Tudor Have A “Design Tease” Issue?
101 comments
white-dial Tudor Black Bay Pro on its side, crown up
Sunday Morning Showdown: Zenith Chronomaster Solo Sport Vs. Breitling Chronomat Automatic B31 40
90 comments
Zenith Chronomaster Solo Sport Vs. Breitling Chronomat Automatic B31 40 collage
Sunday Morning Showdown: Tudor Northflag Vs. Tudor Black Bay Pro
69 comments
Tudor Black Bay Pro vs. Tudor Northflag header image
Sunday Morning Showdown: Orient Star Sakigake Three Hand Vs. Tissot Gentleman 38mm
59 comments
Tissot Gentleman 38mm vs. Orient Sakigake Three Hand pocket shot collage
Podcast LISTEN TO ALL →

Fratello on air
Stay and listen

Every week, our authors and editors give you exciting insights into the inner workings of the watch industry. What’s new? What’s hot? What vintage pieces have we discovered that we love?

listen
vintage Rolex Submariner ref. 5508 on its side, crown up
listen
Vintage Omega Seamaster on wrist
PREVIOUS FEATURES All →
Anoma A1 Core Collection from abyss and stone

No Rush, Here’s The Anoma A1 Core Collection In Abyss Blue And Stone Gray

Daan de Groot
6
Hamilton Khaki Field Mechanical 38mm for Call of Duty: Modern Warfare 4 on its side, crown up
Hamilton Returns To Call Of Duty With A New Khaki Field Mechanical 38mm
Lex Stolk
36
Grand Seiko SBGW325 head on
Hot Take: Grand Seiko Introduces The SBGW325
Nacho Conde Garzón
29
Newsletter

Exciting content
Straight to your inbox

Most viewed
The Top 5 Titanium Watches Released in 2026
Jorg Weppelink
16
Toledano & Chan B/1.3r pocket shot
Mechanical Resurrection: The New Christopher Ward C63 Sealander Chronograph
Jorg Weppelink
18
Christopher Ward C63 Sealander Chronograph white dial up close
Get Lost In Ressence’s New Type 9 Art Watch By Belgian Artist Jules Wittock
Daan de Groot
4
green-dial Ressence Type 9 Jules Wittock, tilted back
Fratello Talks: Our Favorite Vintage Rolex Models
Fratello
7
vintage Rolex Submariner ref. 5508 on its side, crown up
IFL Watches Spinnaker Spence Underwater Dancers floating

IFL Watches And Spinnaker Team Up For The Colorful Spence Underwater Dancers

Jorg Weppelink
4