Other variants in Wempe's exclusive Port Hole series feature high-gloss chrome-plated, matte nickel-plated, or high-gloss polished and colorlessly lacquered brass cases. The dials of the all quartz clocks are available with either Roman numerals or Arabic numerals; a barometer, comfortmeter or a thermo-hygrometer complete the series. Various polished mahogany plates or black polished wooden plates are available for mounting the instruments in this series. 

The series includes the CW180001 chronometer with Roman numerals, the CW180002 barometer, the CW180003 comfortmeter, the CW180004 chronometer with Arabic numerals, and the CW180007 thermo-hygrometer. Each item is sold separately or they can be purchase as a complete series. 

CW180007 Thermo-Hygromter
CW180004 Chronometer
CW180003 Comfortmeter
CW180002 Barometer
CW180001 Chronometer