Our 5.5" Brass Captain's Time & Tide and Barometer set will add an elegant nautical touch to any home or office.Both of these quality 5.5" diameter instruments are made of solid brass. They feature a depth of 2" and weigh approximately 3 lbs each. The movement is a dual quartz time and tide. Mahogany stand is not included. The tide movement works off a 12 hour and 25 minute rotation for every 360 (degrees). The movement has a 3 year manufacturer's warranty.We also offer a 30-day money-back guarantee if you are not completely satisfied with the clock.The clock operates off one 'AA' battery. Easy to set and maintain. Instructions for setting the tide and barometer will accompany the instruments. Available Engraving Area: 1.1/4" x 3"