Weems and Plath Endurance 125 Clock - Manual (Page 17)

Time & Tide Operating Instructions
Time
1) Insert AA alkaline battery. Follow diagram on battery housing to make
certain battery is not put in backwards. Use only alkaline batteries as
they have longer shelf life and are less prone to leakage.
2) To advance hour and minute hands, turn knob counter-clockwise. To
reverse, turn clockwise.
Tide
3) At the appropriate time, set the tide hand to high or low tide using the
gear wheel located below the battery compartment. To adjust the gear
wheel, use the tip of a ball point pen, or similar blunt instrument to
apply sideways pressure to one of the gear spokes. NOTE: It is normal
for the tide hand to have some “play” to it. This allows for proper
rotation of the hand. PLEASE NOTE: Tide fluctuations (high and low
tide) vary from one given place to another. The tide hand therefore will
indicate high and low tide at a particular place or area only. Official
Tide Tables - available at Harbour authorities, etc. - will supply the
exact time of full or high tide. High and low tides have a fluctuation
rhythm between 12 and 13 hours. Therefore, the tide indicator will
show average values only, which for general requirements will be
fully satisfactory. This tide schedule is geared to tides for the east
coast of North America. They will not accurately depict tides for the
west coast.