Citizen C070 User Manual

Overview of the Citizen Cal. No. C050 watch, featuring functions for yacht sports.

Overview of the Citizen Cal. No. C070 watch, designed with necessary information for racing.

Overview of the Citizen Cal. No. C080 watch, combining pilot and world time functions.

Identification of the various parts and indicators on the Cal. No. C050 watch.

Explanation of how to change indications and modes within the digital section.

Detailed steps for setting the time and calendar functions on the watch.

Procedure for setting and managing the first alarm function.

Procedure for setting the second alarm and its snooze function.

Instructions for using the racing timer functions, including Timer I and Timer II.

Guidance on setting and using the analog time display.

Explanation of the rotary ring's functionality, especially for yacht racing.

Identification of the controls and display elements for the Cal. No. C070 watch.

Instructions for setting the analog time on the watch.

Introduction to the digital modes, including Time and Racing modes.

Details on time and calendar setting procedures within the digital section.

Guide on activating and setting the alarm function.

Instructions for operating the stopwatch, including lap time and split time.

Explanation of setting number of laps and circuit distance for racing.

How to use the chronograph for goal-based operations and final data recording.

Identification of the components and indicators on the Cal. No. C080 watch.

Procedure for setting the analog time display.

Guide to switching between different modes like Time, Calendar, Alarm, Zone.

Instructions for checking city times and time differences globally.

Procedure for setting specific cities and summer time for world time display.

Details on setting and displaying main and sub-time for two cities.

Guide to setting and activating the Alarm I function.

Instructions for setting and viewing the date and day of the week.

Explanation of the stopwatch functionality and operation.

General instructions on utilizing the watch's built-in calculation capabilities.

How to calculate required time for flight navigation using the watch's scales.

Important safety and operational steps when replacing the watch battery.

Guidance on correctly installing the circuit unit supporter during assembly.

Information on identifying and handling the electronic circuit unit.

Procedure to check the voltage of the power cell.

Method for verifying the output signals from the electronic circuit.

Checking the LC display panel connection for proper contact and condition.

Inspection of general connection parts for any defects or issues.

How to measure the resistance of the coil unit.

Inspection of the watch's train wheels for clearance, damage, and lubrication.

Verification of the dial side mechanism parts for deformation and lubrication.

How to measure and adjust the time rate of the watch.

Checking the overall using condition of the watch module.

Procedure to measure the current consumption of the watch module.

Final check of the watch's appearance, functions, and case integrity.