which makes a complete sweep at the lunar rate of approximately 12

They are strong enough to carry a full complement of oilskins

showing the stars and constellations visible at the same time on an accurate

the powder will still ignite

and one of very few that still make the mechanical chiming movements that were so familiar to the naval and merchant seaman of 100 years ago

Brass "Clipper" Tarnish-free Instruments with QuickFix System WATERPROOFHGS which makes a complete sweepThese instruments have brass cases with super durable, tarnish free coating and QuickFix fitting system (see explanation below). Case diameter 4. 5", depth 1. 75". Quartz clock movements use one AA battery.