U-Boat 40mm Stratos

MOVEMENT:

mechanical hand winding, personalized to U-BOAT specifications for stem to be positioned at 9 o’clock. 

Frequency: 21,600 vibrations per hour. Power reserve: 42 hours. 17 jewels.

FUNCTIONS:

hours, minutes.

CASE:

stainless steel AISI 316L, distinguishing patented crown on left side. Serial number plate fixed on the side of the case.Diameter 40 mm. 

Bezel ring in polished tungsten. Thickness 9,50mm.

BACK:

sealed with seven external screws, opening U-shaped sapphire fumé crystal with movement view.

DIAL:

three superimposed dials, the upper one in black with luminous beige hands and markers. Visible ruby.

CRYSTAL:

sapphire crystal with anti-reflective coating.

WATER RESISTANCE:

100 mt, 10 ATM.

STRAP:

handmade and hand-finished dark brown alligator leather. Stainless steel tongue buckle. Width: 20/18 mm.