I'm trying to throw some light on the red markings on this Smiths Astral Clock on the Mincarlo Sidewinder Trawler in Lowestoft .
The hours are sub-divided into five X 12 minute segments . Can anyone suggest what the red marks around the perimeter , and the four , three hourly " Maltese Cross " red marks indicate please .
I believe a "typical " trawl lasted 2.75 Hours if that helps .
A free tour of said Vessel , and a pint or two of Adnams if anyone can tell me !
I'm not holding my breath.......
ps They are not " Watches " !