Timex Watch (T2P277) T2P277 Scheda Tecnica

classified as Normal Level, Battery Low Level, and Replace 

Battery Level, with each level indicated by the movement 

of the second hand.
For the Normal Level status, the second hand shall move 

one hand position every one second, which is its normal 

operation. 
When the watch is in Battery Low Level status, the second 

hand shall only move at 2-second intervals and shall 

move by two hand positions. It is recommended that the 

user replace the battery when the watch is at Battery Low 

Level status. 
When the watch is in Replace Battery Level status, the 

second hand shall only move at 5-second intervals and 

shall move by five hand positions. At this point, depth 

sensor can not be activated, and the user must replace 

the  battery immediately. 

(not all models)
The tachymeter will only determine speeds greater than 

60 units per hour using this method; slower speeds can 

be measured by decreasing the unit of measurement. 

The function performed by a tachymeter is independent 

of the unit of distance (e.g. statute miles, nautical miles, 

kilometers, meters etc.) as long as the same unit of length 

is used for all calculations.
1.  Determine the start and finish markers for your   

pre-determined distance.

2.  Start the chronograph once the target for speed 

measurement passes the start marker.

3.  Stop the chronograph once the target for speed 

measurement passes the finish marker.