U-boat
32 THOUSANDS OF FEET MB 1 R

MOVEMENT: ETA 6497 mechanical, frequency 18.000 alternations/hour, 17 rubies
CASE: Steel 316 L AISI with PVD treatment. There are 8 steel screws which lock up the back case from the upper side.
DIAL: black with luminous numbering, produced with superluminova added to coloured pigments. Diameter 50 mm. The dial structure of this model is made up of two superimposed dials: one dial in either yellow or orange treated with superluminova and the other dial laser cut with black pigment, used also to produce military devices. Water-resistance: 10 ATM
Glass: Specially cut ultra dimension in highly resistant K1 glass
Strap: calf leather, handmade in Italy, exclusive aero design
PVD Treatment: This treatment is used to preserve brightness features and special shades of color.