This is a quality 316L stainless steel watch case . Case back and a  crown are rubber sealed.

 

Water resistance:5 ATM

Diameter: 46mm including a crown, excluding a crown 42mm, 50mm lugs to lugs.

Case thickness: 15 mm including a crystal

Width between lugs: 22mm

Bezel diameter: 39,5mm

Case internal diameter: 33.2 mm

Diameter of internal shoulder (visible dial): 32 mm

Case internal height from internal shoulder to the edge: 6 mm

Height between internal shoulder to crystal: 3 mm

Height between internal shoulder and stem hole center : 4.5 mm

Case back cover height : 4 mm

Crown diameter: 7 mm

Crystal diameter: 35 mm