What did collectors bring to the 2024 Dutch Speedmaster GTG? Robert-Jan Broer’s photo report shows a collection-centered gathering at the Coach House at Amerongen Castle, where 51 guests from 10 countries displayed and discussed Speedmasters ranging from vintage commemoratives to modern precious-metal models.
A collector gathering at Amerongen Castle
Organized by Speedmaster enthusiast @watchstick_81, the event took place at the Coach House, part of Amerongen Castle in the center of the Netherlands. Broer reported that 51 guests from 10 countries attended. The Netherlands supplied the largest contingent.
| Country | Attendees, as reported in 2024 |
|---|---|
| Netherlands | 28 |
| Germany | 6 |
| United Kingdom | 5 |
| Belgium | 3 |
| United States | 3 |
| Switzerland | 2 |
| Colombia | 1 |
| Greece | 1 |
| Poland | 1 |
| Denmark | 1 |
These are attendance figures in Broer’s November 19, 2024 Fratello report, not an independent count. He says the previous edition, in 2023, drew approximately 20 enthusiasts. His report also put the Speedy Tuesday Facebook group at 4,200 members at that time; that is a dated membership figure, not a current total.
Collection sharing, not a packed program
Broer describes the GTG as a chance for guests to bring watches and other Speedmaster-related pieces, put them on display, and spend hours talking through them. In his words, “This is a GTG where people share their collections and discuss the watches in-depth for hours.”
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| Format | What Broer says it emphasizes |
|---|---|
| Dutch Speedmaster GTG | Informal collection sharing and in-depth discussion of attendees’ watches and related items. |
| Speedy Tuesday events | Presentations and Q&As; Broer says they often include an introduction to new Speedmaster models. |
Broer says the organizer curated the guest list to make collection sharing feel trusted. “It all revolved around trust, and it worked out well,” he wrote. That account describes the intended atmosphere; it is not a claim that every watch at the gathering was independently authenticated.
What the photographs show
The report’s images and captions move across different eras, complications, materials, and commemorative designs. The examples below illustrate that range; they are not a complete inventory of the watches present.
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- Stainless steel case
- Black dial
- Swiss-automatic movement
- Case diameter: 40mm
- Water resistant to 330 feet
Vintage references and unusual variants
- SpeedyMoon: Broer identifies an 1980s Speedmaster with caliber 866, reference 345.0809, and describes production as 1,300 pieces.
- Apollo-Soyuz: The 1976 commemorative model appears among the watches. Broer says Omega produced 500 at the request of its Italian distributor.
- “Holy Grail” automatic: The Speedmaster Automatic reference 376.0822, fitted with a Lemania 5100 movement, is another notable variant in the report.
- Mark II Racing: The reference 145.014 shows a racing-style take on the Speedmaster design.
- Other distinctive examples: Broer also features an original “Ultraman,” a Speedmaster 125, and a Speedmaster “Mark 4.5.”
Precious-metal and anniversary pieces
- White-gold Moonphase: Broer describes this Speedmaster Moonphase as introduced in 1999 for the 30th anniversary of Apollo 11.
- Platinum Calibre 321: The report includes a platinum Speedmaster Professional powered by Calibre 321.
- Apollo 11 and Space Shuttle commemoratives: The photographs include 1980 commemorative watches associated with both milestones.
- Jubilee edition: A 1992 Speedmaster Professional Jubilee 27 CHRO C12, reference 3194.50, is also shown.
First Omega in Space and later models
The First Omega in Space examples include the Sedna Gold “Panda,” reference 311.63.40.30.02.001, as well as the then-new blue-dial model. The report also features a Speedmaster X-33 Gen 2, adding a more instrument-oriented design to the mix.
Model names, dates, and production quantities here follow Broer’s captions and descriptions in the November 2024 report. The photographs document what the report presents, but do not establish independent authentication or a definitive event-wide inventory.
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Read the original photo report
See Robert-Jan Broer’s full Photo Report: The 2024 Dutch Speedmaster GTG, published by Fratello on November 19, 2024.
Quick Recap
Best Value
- Rubber
- Rotating bezel, gmt
- Automatic-self-wind movement
- Case diameter: 40mm
- Water resistant to 330 feet
Rank #4
- OMEGA Speedmaster Racing Chronograph 326.30.40.50.01.001
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