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Silencing the Chime

To silence the strike, simply slide the small pin 
(located near the“8” on the Ship’s Bell dial, 
and near the “11” on the Shipstrike dial) away 
from the bell symbol. To resume striking, slide 
the pin toward the bell.

Warning:

 Do not turn off the strike while the clock is strik-

ing. Be sure to move the pin completely in one direction or 
the other to prevent jamming.

The Ship’s Bell Code

Mariners have used a unique bell code to tell time at sea 
for hundreds of years. The code is based upon the crew’s 
typical, 24-hour workday routine. The day is divided into 
six four-hour periods, each called a “watch.” Similarly, the 
crew is segmented into three divisions. Division members 
perform their duties on two watches per day, with eight 
hours off between watches. To rotate each division’s 
watch times, the evening watch is typically divided into 
two watches (called dogwatches). The first dogwatch is 
the period between 4 and 6 p.m.; the second is the period 
between 6 and 8 p.m.

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.

Summary of Contents for Mechanical Clocks Barometers

Page 1: ...Mechanical Clocks Barometers Since 1897 Owner s Manual ...

Page 2: ...r of an exquisite work of art crafted by the elite master clockmakers of Chelsea Clock For over a century our craftspeople have been creating instruments whose beauty and workmanship enhance their extraordinary functionality and durability ...

Page 3: ...manually only the minute hand Never force hands If they lock at any point turn the minute hand backwards through one full striking then continue as above Warn Periods Mechanical clocks have a warn period at 20 minutes past and 10 minutes before each hour This means that for the 10 minutes prior to each striking point the gears and levers of the mechanism are preparing to fall into position There f...

Page 4: ...ds one hour or more Reset the time allowing full strikes at the hour and half hour Regulating the Clock Your clock is finely regulated before it leaves our factory However environmental conditions and other factors can affect its rate over time Adjusting the clock s micrometer can help com pensate for minor time gains or loses wheel located on the left hand side of the Ship s Bell dial lever next ...

Page 5: ...mer is resting on or is too close to the gong it needs to be gently bent upwards just enough so it s not touching the coil while at rest Hold the wire between two fingers while in the rest posi tion do not press down on it Carefully bend the hammer slightly up and away from the gong using needle nose pliers or rigid object Using your finger gently lift and drop the hammer wire to hear its sound Re...

Page 6: ... the crew s typical 24 hour workday routine The day is divided into six four hour periods each called a watch Similarly the crew is segmented into three divisions Division members perform their duties on two watches per day with eight hours off between watches To rotate each division s watch times the evening watch is typically divided into two watches called dogwatches The first dogwatch is the p...

Page 7: ... 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 The Barometer How it Works A barometer measures changes in atmospheric pressure or the weight of the air Changes in pressure typically foretell changes in the weather Weather watchers will note a barom eter s reading and how much and how fast it rises or fall...

Page 8: ...movement of the black hand for several days at a time A passing storm often brings rapidly falling pressure Setting for Local Altitude When you Chelsea Clock barometer leaves our factory it is adjusted to register pressure at sea level the standard for measuring barometric pressure regardless of location or altitude However because atmospheric pressure decreases as altitude increases if you live i...

Page 9: ...an tarnish and pit the finish Servicing Your Clock or Barometer Based on normal operating conditions our technicians recommend that your Chelsea clock be cleaned oiled and adjusted about every seven years Condi tions such as extreme heat cold dust and prolonged idleness can necessitate more frequent servicing Your Chelsea Clock timepiece or ba rometer is a precision instrument and should only be s...

Page 10: ...r replacement instrument will be returned to you postage prepaid All implied warranties covering merchantability fitness for particular purpose or oth erwise are limited in duration to five 5 years from the date of original purchase for a Ship s Bell two 2 years for a Shipstrike The repair or replacement of any defect is the exclusive remedy under this warranty In addi tion the warrantor shall not...

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