The Classic Sonata

From Ulysse Nardin -

Courtesy of Ulysse Nardin

Here are the pertinents -

Reference
673-05/93-BQ 

Limited Edition
To 99 pieces 

Movement 

Caliber UN-67
Front side/back side etched anchor with integrated safety pin in Silicium 
Front side/back side etched roller with integrated impulse finger in Silicium
Silicium cut hairspring Patented inertial oscillator 

Power-Reserve 

Approximately 42 h 

Winding 

Self-winding 

Functions

Hours, minutes, seconds
Alarm with cathedral gong
Dual Time system with instant timezone adjustor

Big date in a double window, forward and backward date corrector 

Case

Titanium / stainless steel 

Dial

Blue with hours indexes 

Diameter
44 mm 

Water-resistance 

30 m 

Crystal
Anti-reflective sapphire crystal 

Case-back
Sapphire crystal 

Strap
Leather strap with folding buckle