The Marine Grand Deck Tourbillon

From Ulysse Nardin -

Courtesy of Ulysse Nardin

44 mm in rose gold and limited to 18 pieces.  
Here are the pertinents -

T E C H N I C A L  D A T A

Ref. 6302-300/GD 

Movement:

Caliber UN-630 21'600 v/h

Tourbillon with an exclusive boom display

Power-Reserve:

Approximately 48 hours

Winding:

Manual-winding

Functions:

Jumping hour in a double aperture

Minutes on a graduated arc

60 seconds flying tourbillon

Forward and backward hour corrector

Case:

18 ct rose gold 5N, fluted bezel

Crown:

Screw-down security crown covered with black rubber

Diameter:

44 mm

Water-Resistance:

100 m

Dial:
Hand-crafted wood marquetry
Minutes arc of brown spinel in the center of the dial
Golden boom indicates minutes  

Crystal:

Anti-reflective sapphire crystal

Case-Back:

Sapphire crystal 

Bracelet:

Leather with a folding buckle