Weems & Plath Merkur SE Compass

Features: 

• This exceptional black compass is U.S. Coastguard approved for use on lifeboats. It can be flush mounted and can withstand extreme weather conditions
• The black housing of the compass is seawater resistant and made of a light alloy
• The super-strong glass dome is insensitive to ultraviolet rays and is guaranteed for life against cracking, crazing and yellowing under normal use
• This Merkur SE Compass is manufactured by C. Plath in Germany and features a full spherical construction with an internal gimbal system which accommodates all angles of heel without compromising accuracy
• The oscillation-free double bottom compensates for volumetric changes
• The accuracy of indication, lag error, and oscillation period all exceed the International Organization of Standards norm
• Additionally, the compass vibration resistance exceeds requirements of BSH (German Hydrographic Institute)
• Apparent card diameter: 4-3/4" (120 mm)
• 5" (126 mm) tall x 5-3/4" (145 mm) wide
• Red glare-free illumination
• Concave card with clear 5 degree graduation
• (3) Lubber lines
• Designed for horizontal flush surface mounting
• Accuracy of indication: less than or equal to 1 degree
• Lag error: less than or equal to 2 degrees
• Oscillation period: greater than or equal to 4.7 sec
• Temperature range: -22 degrees F to 158 degrees
• Three year warranty on body
• Compensation capsule available
• USCG Approved #160.014/9