The Top 5 Rarest Swiss Watches Only True Collectors Know About in 2025

Exquisite Timepieces That Define Rarity

1. Patek Philippe Grandmaster Chime Ref. 6300A-010

2. Vacheron Constantin 57260

3. Audemars Piguet Royal Oak Perpetual Calendar Black Ceramic "Piece Unique"

4. Rolex Daytona "Paul Newman" Ref. 6239

5. F.P. Journe Astronomic Blue

05 || Patek Philippe Grandmaster Chime Ref. 6300A-010

Images Credit: Patek Philippe

🔹 Why It’s Rare: Only one piece was ever made.

🔹 Notable Features: The most complicated Patek Philippe ever, featuring 20 complications including a Grande Sonnerie and perpetual calendar.

🔹 Auction Price: Sold for $31 million, making it the most expensive wristwatch ever auctioned.

🕰 Fun Fact: This watch was made exclusively for the Only Watch Charity Auction in 2019.

Treebox Rating

8.0

04 || Vacheron Constantin 57260

Images Credit: Vacheron Constantin

🔹 Why It’s Rare: The most complicated watch ever made—only one exists.

🔹 Notable Features: A whopping 57 complications, including a Hebrew calendar, double retrograde split-seconds chronograph, and celestial chart.

🔹 Estimated Value: Around $10 million.

🕰 Fun Fact: It took 8 years and three master watchmakers to complete this timepiece.

Treebox Rating

8.3

03 || Audemars Piguet Royal Oak Perpetual Calendar Black Ceramic "Piece Unique"

Images Credit: Audemars Piguet

🔹 Why It’s Rare: Only one exists, made exclusively for an unnamed client.

🔹 Notable Features: Full black ceramic case and bracelet, perpetual calendar with moonphase, and ultra-thin movement.

🔹 Estimated Value: Over $1 million.

🕰 Fun Fact: AP's ceramic finishing takes 5x longer than stainless steel to polish.

Treebox Rating

8.9

02 || Rolex Daytona "Paul Newman" Ref. 6239

Images Credit: Rolex

🔹 Why It’s Rare: Owned and worn by Paul Newman himself.

🔹 Notable Features: Exotic dial, manual-wind Valjoux 72 movement, and steel case.

🔹 Auction Price: Sold for $17.8 million at Phillips Auction in 2017.

🕰 Fun Fact: This Rolex was a gift from Paul Newman’s wife, Joanne Woodward, who had “Drive Carefully Me” engraved on the case back.

Treebox Rating

9.2

01 || F.P. Journe Astronomic Blue

Images Credit:: F.P. Journe

Treebox Rating

9.7

🔹 Why It’s Rare: Only one was made for charity.

🔹 Notable Features: 18 complications, including minute repeater, tourbillon, and sidereal time.

🔹 Auction Price: Sold for $1.8 million at Only Watch 2019.

🕰 Fun Fact: This was the first-ever steel-cased Astronomic watch by F.P. Journe.

Treebox Rating

9.7