Case

Zinc-plated steel.

Bezel

AISI 303 stainless steel.

Window

Glass.

Dial

Natural matte anodised aluminium.

Clockwise (D) or anti-clockwise (S) graduation, black colour.

Reading

The black pointer indicates the number of turns of the spindle from the start position (0), the red pointer indicates the fractions of turn.

Ratio

To choose the ratio see "Positive drive indicators introduction".