The Marine Chronometer Manufacture

From Ulysse Nardin -

 

 

 

 

Courtesy of Ulysse Nardin

 Two different versions - blue or white lacquered dial.

Courtesy of Ulysse Nardin

Here are the pertinents -

References 

1183-122-3/43 
1183-122-3/40 

Movement 

caliber UN-118, dimension : 13 3⁄4 ’’
in-house designed movement
Escapement, patented DIAMonSIL
Oscillator: patented inertial balance wheel with Silicium hairspring 50 jewels 
 

Power-Reserve

approximately 60 h 

Winding 

self-winding 

Functions 

Chronometer COSC with power-reserve indicator at 12’oclock 
small direct seconds and round date window at 6 o’clock forward 
and backward date corrector 

Case

stainless steel

Dial
blue or white lacquered dial, with roman numerals 

 

Bezel

fluted bezel

Crown

screw down security crown, covered with rubber

Diameter

45 mm

Water-resistance 

200 m

Crystal

anti-reflective sapphire crystal

Case-back 

sapphire crystal

 

Strap 

rubber strap with titanium elements and folding buckle