Seiko KINETIC 7L22A User Manual

1
PARTS CATALOGUE / TECHNICAL GUIDE
Cal. 7L22A
[SPECIFICATIONS]
Cal. No.
Item
Movement
7L22A
(x 1.0)
Movement
size
ø32.0 mm
ø30.0 mm
Time indication
Main time : Hour, minute and small second hands ( 1second)
Outside diameter
Casing diameter
Height 6.4 mm
Driving system
Additional mechanism
Loss/gain
Monthly rate within normal temperature range: less than 15 seconds
Regulation system Nil
Measuring gate by quartz tester
10-second gate
Titaniume lithium ion rechargeable battery
Power
Supply
Automatic generating system
Operating voltage range 0.45 ~ 2.5 V
Duration of operation
From full charge to stoppage : Approximately 5 months
Jewels 8 jewels
Step motor, 2 pieces (Load compensated driving pulse type)
• Electronic circuit reset switch
• Train wheel setting device
• Date calendar
•Instant setting device for day
calendar
Power generator
KINETIC E.S.U
Stopwatch : Stopwatch minute and 1/5 second hands (0.2 second)
( Movement intervals)
• Automatic generating system
• Energy depletion forewarning
function
• Overcharge prevention
function
• Stopwatch function
45 minutes measurement in 1/5 second increments
Accumulated elapsed time measurement
Heartcam fly-back Reset

Seiko KINETIC 7L22A Specifications

Operating Environment

operational temperature range	-10° C ~ +60° C
loss/gain (monthly rate)	Less than 15 seconds
frequency of crystal oscillator	32, 768 Hz

Power

duration of full charge	Approximately 5 months
duration after the second hand starts moving at two-second intervals	Approximately 12 hours
KINETIC electricity storage unit	Button type, 1 piece

Summary

SEIKO Cal. 7L22A Specifications

Movement Size Details

Details casing diameter and height of the movement.

Time Indication and Intervals

Specifies how time is displayed and movement intervals.

Driving System Description

Describes the motor type and pulse type.

Additional Mechanism Functions

Lists various functions like calendar and stopwatch.

Loss and Gain Rate

States monthly rate deviation under normal temperature.

Regulation System Type

Indicates the type of regulation system.

Measuring Gate by Quartz Tester

Specifies the measuring gate used.

Power Generator System

Details the automatic generating system.

Power Supply Unit

Identifies the rechargeable battery type.

Operating Voltage Range

Specifies the voltage range for operation.

Duration of Operation After Charge

Indicates the duration after full charge.

Jewel Count

States the number of jewels in the movement.

Watch Features and Operation

How to Charge and Start the Watch

Provides step-by-step instructions for charging and starting the watch.

Power Reserve in Your SEIKO KINETIC Watch

Explains how energy is stored and guidelines for power reserve.

Remarks on the KINETIC E.S.U.

Offers important notes and cautions regarding the KINETIC E.S.U.

Energy Depletion Forewarning Function

Describes the function that indicates low energy levels.

Time and Calendar Setting

Time/Calendar Setting Procedure

Details the procedure for setting the watch's time and date.

Models with Screw Lock Type Crown

Provides specific instructions for watches with a screw lock crown.

Stopwatch Functions and Operation

Stopwatch Measurement and Indication

Explains how the stopwatch measures time up to 45 minutes in 1/5 second increments.

Stopwatch Operation Guide

Details how to start, stop, and reset the stopwatch.

Tachymeter Usage

Measuring Vehicle Speed

Instructions on using the tachymeter to measure hourly average speed.

Measuring Hourly Rate of Operation

Guide for using the tachymeter to measure jobs accomplished per hour.