Compass Replacement

Matt & Michelle Day, SM#208 SV Talia

After 20+ years of service, the compass on Talia (SM#209) has developed an air bubble (astonishing service life by today's standards).  The compass is a Plastimo Olympic 135. 

My intention was to remove the compass, replace the oil, and/or diaphragm.  However, after disassembly followed by a little web research it appears this model compass is not serviceable.

Anyone on the forum serviced or replaced this compass?  Replaced with the same Olympic 135, or other make/model?

Many thanks for your input.

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