Tiffany & Co. Chelsea Ship’s Bell Wall Clock with Key and 3 Hanging Screws. This is an incomparable handcrafted timepiece with gentle, rich-sounding chimes. Pre-owned; brass with some slight discolorations (see photos). This has an engraving as it was an employment anniversary gift. My understanding is engraving can be removed from brass. (Buyer is responsible for verifying information and for removal of engraving.) 5-1/2” wide X 3-3/4” deep with a dial diameter of 4” Tested and working. Hanging hardware (3 screws) and winding key included. “The Chelsea Clock Ship’s Bell Clock is among the most distinguished timepieces available. We patented the first Ship’s Bell in our factory in 1900, and it has since been held as the standard by which all other Chelsea clocks are measured. For well over a century, our Ship’s Bell clocks have been cherished and revered by the world’s top clockmakers and collectors.” Mariners have used a unique bell code to tell time at sea for hundreds of years. The code is based on the crew’s typical workday routine while the vessel is underway. A ship at sea requires constant attention throughout the day’s twenty-four hours. The day, is therefore divided into six four-hour periods, each called a “watch.” Similarly, the crew is segmented into three divisions. Division members then stand their individually assigned duties on two watches per day, with eight hours off duty between watches. To rotate each division’s watch times, the Evening Watch is periodically divided into two watches. These are called Dog Watches because they “dog” the watch schedule for all divisions ahead by one watch period. First Watch 8:00 p.m. to 12:00 a.m. Mid-Watch (also Black Watch) 12:00 a.m. to 4:00 a.m. Morning Watch 4:00 a.m. to 8:00 a.m. Forenoon Watch 8:00 a.m. to 12:00 p.m. Afternoon Watch 12:00 p.m. to 4:00 p.m. Evening Watch 4:00 p.m. to 8:00 p.m. the watch officer struck the ship’s bell every half hour to apprise the crew of the time. A single bell denotes the end of the first half hour and one bell was added each half-hour. Eight bells, therefore, signaled the end of each four-hour watch. Like centuries of seafarers, one can know the time when the clock chimes, even if one can’t see it. 8 bells - 12:00 4:00 8:00 1 bell - 12:30 4:30 8:30 2 bells - 1:00 5:00 9:00 3 bells - 1:30 5:30 9:30 4 bells - 2:00 6:00 10:00 5 bells - 2:30 6:30 10:30 6 bells - 3:00 7:00 11:00 7 bells - 3:30 7:30 11:30