Seiko KINETIC 7L22A Parts Catalogue /Technical Manual page 2

BEFORE STARTING REPAIR WORK ON 7L22A
Before starting repairs, read this manual carefully to understand the features of this watch and strictly
observe the instructions regarding how to perform repairs and checks in order to ensure appropriate
work is carried out.
Features of Cal. 7L22A
The Cal. 7L22A is a fully-fledged chronograph featuring a Kinetic Automatic Generating System.
5M6 series parts are used for the Automatic Generating System and 7N series parts are used for the
wheels and motors.
1. Stopwatch functions
◆ The stopwatch is designed to time up to 45 minutes in 1/5 second increments.
◆ The measured time is indicated by two stopwatch hands.
◆ After timing for 45 minutes, it continues timing up until 48 minutes before automatically stopping.
◆ The stopwatch can be reset even while it is currently timing.
◆ Stopwatch Operation:
Button A : Start/ Stop
Button B : Reset
◆ Heartcam Chronograph Reset:
The two stopwatch hands are instantaneously reset to the zero position.
◆ Measuring methods:
Standard measurement
Accumulated elapsed time measurement
2. Kinetic features
◆ The watch will keep operating for approximately 5 months when fully charged under the condition
that the stopwatch is used for no longer than for 45 minutes per day.
◆ Energy Depletion Forewarning Function
When energy is running low, the small second hand will start moving in two-second intervals to
indicate recharging is required. If the watch is not recharged at this time, it will run down within
approximately 12 hours after the initial forewarning.
◆ Gently swing the stopped watch from side to side at least five hundred times until it returns to its
normal one-second intervals from the two-second intervals.
2
A
B