Seiko 7T12 User Manual

INSTRUCTIONS (P. 3)
BEDIENUNGSANLEITUNG (S. 21)
INSTRUCTIONS (P. 39)
ISTRUZIONI (P. 57)
INSTRUCCIONES (P. 75)
INSTRUÇÕES (P. 93)
 ИНСТРУКЦИИ (P. 111)
 用法説明 (129頁 )
Cal. 7T12

Seiko 7T12 Specifications

Operating Environment

operational temperature range	-10° C to +60° C
loss/gain (monthly rate)	±15 seconds at normal temperature range
frequency of crystal oscillator	32, 768 Hz

Battery

battery type	SEIKO SR927SW
battery life	Approximately 5 years
battery quantity	1 piece

Summary

SCREW LOCK TYPE CROWN

How to use the screw lock type crown

Explains how to operate the screw lock crown for security and water resistance.

SETTING THE TIME AND ADJUSTING THE STOPWATCH HAND POSITION

TIME SETTING

Instructions on how to set the hour and minute hands of the watch.

STOPWATCH HAND POSITION ADJUSTMENT

Procedure to reset the stopwatch hands to their zero position.

SETTING THE DATE

STOPWATCH

How to reset the stopwatch

Procedures for resetting the stopwatch hands in various states.

SECURITY LOCK BUTTON OPERATION

TACHYMETER

To measure the hourly average speed of a vehicle

How to use the tachymeter to calculate vehicle speed.

To measure the hourly rate of operation

How to use the tachymeter to calculate job completion rate.

TELEMETTER

HOW TO USE THE TELEMETER

Step-by-step guide on using the telemeter function.

BATTERY CHANGE

Battery life indicator

How to understand the watch's indicator for low battery.

SPECIFICATIONS