SPECIFICATIONS 

Brand: Blancpain
Model: Leman Perpetual Calendar Chronograph
Reference Number: 2189F-3430-63B
Movement: Automatic
Condition: Very good
Gender: Men's
Time Period: 2000s
Box: No
Papers: No

THE CALIBER

Caliber: 23F9A
Jewels: 39  

THE CASE

Case Material: Platinum
Case Diameter: 38 mm
Thickness: 14 mm
Waterproof: 320 ft./ 100 m./ 10 ATM
Bezel Material: Fixed stepped platinum 
Glass: Sapphire Crystal 
Caseback: Solid
Dial: Black
Dial Numerals: Luminescent Arabic numeral and dot hour indices, white Arabic minute markers every five minutes with white minute division around the outer rim

THE BRACELET / STRAP

Bracelet Material: Black Leather
Buckle: Ardillon
Buckle Material: 18K white gold

THE FUNCTIONS

Tourbillon cage at 6 o'clock with a 40-hour power reserve, split-seconds flyback chronograph mechanism with 30-minute and 12-hour counters at 3 and 9 o’clock respectively, and split-seconds chronograph hands in the center, hours and minutes on a subsidiary dial at 12 o'clock

FURTHER READING 

Round shape case
18K white gold applied and luminescent sword-shaped hour/minute and sub-dials hands, 18K white gold applied stick-shaped with luminous coating arrow finials chronograph/split-seconds hands
Blancpain signature between 1 and 2 o'clock
Platinum downturned lugs
Sapphire crystal display case back
Platinum screw-in crown and chronograph pushers at 2 and 4 o'clock (start/stop - reset), split-seconds flyback reset pusher at 10 o'clock.
Balance adjusted to heat, cold, isochronism, and five positions
Côte de Genève on the movement
This limited edition of just 99 examples worldwide and the world's first combination of the tourbillon and the chronograph complications was introduced in 1999 by Blancpain to the 10th anniversary of its split-seconds chronograph 
incomplete (no box, no papers)