Fifty Fathoms Grande Date 5050-12B30-NABA
Fifty Fathoms Grand Date 5050-12B30-NABA
45mm, Black/Big Date
Blancpain
Blancpain
Fifty Fathoms Grand Date 5050-12B30-NABA
Since its debut in 1953, Blancpain Fifty Fathoms has been widely recognized as the world’s first modern diver’s watch and has established itself as Blancpain’s representative collection. It is a legendary model that first introduced key technologies such as water resistance, A rotating bezel, And luminous functions, And has been trusted by both the military and civilian sectors. Today, It continues to be the essence of diver’s watches, Evolving with various materials, Sizes, And complications.
The Blancpain Fifty Fathoms Grande Date 5050-12B30-NABA is a diver’s watch with a 45 mm titanium case, A matte black dial, A unidirectional rotating sapphire bezel and a black fabric strap. The dial features Arabic numerals and indexes at 12 o’clock, A strong sword hand and a double window Grande Date display at 6 o’clock. This big date displays the date in two large windows for maximum readability, Allowing the date to be checked at a glance even during a dive.
The titanium case is lighter and more durable than steel, And has both the reliability and practicality of a diver’s watch, Including 300m water resistance, A screw-down crown, And a curved sapphire bezel. Through the sapphire crystal back, You can admire the sophisticated finish of the Blancpain in-house movement, The silicon balance spring, And the high-end technology of the 120-hour power reserve. This is a model that will fully allow you to feel the charm of Blancpain Fifty Fathoms.
- Dial color
- Black
- Dial characteristics
- Big Date
- Glass
- Sapphire crystal
- Case material
- Titanium
- Case diameter
- 45mm
- Case thickness
- 16.25mm
- Bracelet material
- NATO
- Types of bracelets
- Strap
- Bezel material
- Titanium, Sapphire insert
- Bezel types
- Unidirectional rotating bezel
- Waterproof
- 300m
- Movement
- Self-winding
- Caliber
- Cal.6918B
- Frequency
- 28, 800 vibrations
- Power reserve
- About 120 hours
Official Retail Price vs Average Sold Price by Year| Year | Official retail price | Average sold price |
|---|
| 2025 | ₩28,440,000 | - |
| 2024 | ₩27,080,000 | - |
Official retail price is based on the first price increase of each year.

bigger and bigger,
clocks growing up
Enlargement of the watch (1)

Rolex Sacred Heart
Why it is not correct
Positive aspects of the expanding resell market

Secondary market analysis
Part 1
The reason why you should pay attention to the pre-owned watch market now

The fastest watches in the world
Watches of Formula 1

Calendar
In-depth study of the calendar function to become an intermediate watch watch user.

Omega Speedmaster
Reproduction model
Speedmaster in search of past glory

2025 Tudor New Releases – Comprehensive Lineup Focus Analysis
Brand Colors Take on a More Distinct Identity

IWC
Can you make a comeback?
Watches that have even influenced the film industry, Will this new attempt be successful?

Resale Premium
Top 6
Premium still exists

IWC
Spitfire experience
Pilot’s watch perfect as a daily tool watch