Ritchie S-53 Explorer Compass - Surface Mount - Black [S-53] Viper 16 Cut-Out Length Y1 (in) -

Cut-Out Length Y1 (in) - 15 15/16

L (in) - 3 61/64

4mm (1/4") fixing hole

Opening and closing is done simply by rotating the pin half a turn

Ritchie S-53 Explorer Compass - Surface Mount - Black [S-53] Viper 16 Cut-Out Length Y1 (in) -Explorer Compass Features: 2 3 4 (70 mm) Easy to Read Direct Reading Dial Compact Low Profile Design Quick Push Button Removal of Compass Module for Storage and Security Choice of Colors Internal Green Night Illumination Built in Compensators to Easily Adjust for Deviation Scientifically Matched Sapphire Jewel & Hardened Steel Pivot Dial Movement Powerful DirectiveForce Magnets for Fast Heading Lock on Movable Sun Shield High Temperature Composite