The Marine 1846

From Ulysse Nardin -

Courtesy of Ulysse Nardin

Here are the pertinents, straight from the source -

Reference-

1183-900/EO

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 quick forward and backward date corrector

Case:
stainless steel

Dial:

“Grand Feu” white enamel dial, with roman numerals 

Bezel:
fluted bezel

Crown:

screw down security crown

Diameter:
41 mm

Water-resistance:
100 m

Crystal:
anti-reflective sapphire crystal

Case-back:
engraved case-back

Strap:
leather with a simple buckle