Nautical 8 1/2" Porthole W/Clock

Nautical 8 1/2" Porthole W/Clock
Clocks - 8 1/2" Porthole W/Clock
Nautical 8 1/2" Porthole W/Clock Related Items:
This unit houses a special patented double capsule movement that is factory certified to be accurate to within 0 .2% of real pressure. More noteworthy is that the scale range has changed from the traditional scale of 27.5" to 31.5" Hg to an expanded scale of 28.5" to 30.5" Hg. This exaggerates the needle movement, making a small change in pressure much more noticeable. The barometer movement is calibrated for altitudes to 1500' above sea level. Wt. 3lbs. 3 oz.
Temperature compensated, aneroid movement. Fully adjustable. Inch and millibar scales. Our standard barometer movements are calibrated for altitudes to 3,500' above sea level. Movements for altitudes from 3,500' to 7,000' are available by special order for an additional charge. Dial: 4". Base: 5-1/2". Depth: 2-7/8". Wt. 3 lbs. 3 oz.
This wall barometer has a cherry finish and brushed stainless steel trim. Dial: 4". Base: 6". Depth: 1-3/4". Wt. 1 lb. 6 oz.
Features traditional ship's 8-bell cycle, ringing every half hour. Complete with bell silencer switch. AA battery included. Wt. 3 lbs. 10 oz.
Combination quartz and tide clock movement which averages the Atlantic lunar tide cycle. The tide sector is calibrated for the east coast of the United States. Uses a AA battery. (Note: The clock will work for other tidal bodies of water but will need to be re-set more frequently.) Dial: 4". Base: 5-1/2". Depth: 2-7/8". Wt. 3 lbs. 3 oz.
