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Epson SOLAR Series - User Manual

Epson SOLAR Series
28 pages
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Watch Movement Specification and Drawing
SOLAR SERIES
Cal. VS75A
Movement Size
Casing Diameter
Height
Running Time
12’
Ø 27.0mm
4.40mm
Approx. 6 months

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Epson SOLAR Series Specifications

General IconGeneral
BrandEpson
CategoryWatch
MovementQuartz
SeriesSOLAR
Power SourceSolar

Summary

Introduction and Overview

Cal. VS75 A Movement Specifications Summary

Presents key specifications like movement size, casing diameter, height, and running time.

Features

Solar-Powered Watch Capabilities

Details solar power conversion, battery replacement elimination, and running time.

Dial Transmittance and Power Functions

Covers dial light transmittance, power depletion warning, and over charge prevention.

Movement Specifications

Dimensions and Time Standard

Details movement dimensions, quartz oscillator, accuracy, and operating temperature.

Indicators, Functions, and Features

Explains functions, features like anti-magnetism, and driving current consumption.

Secondary Battery and Parts List

Provides secondary battery specs and lists separated parts with codes.

Appearance

Component Layout Diagram

Diagram illustrating the arrangement of key components like the setting stem and battery.

Casing

Casing Dimensions and Drawings

Detailed drawings and dimensions related to the watch casing and internal layout.

Hand Fitting

Hand Specifications and Parts

Details unbalance, moment of inertia for hands, and their respective part numbers.

Hand Setting Stem

Hand Setting Stem Details

Specifications for the hand setting stem, including part number and dimensions.

Dial

Dial Dimensions and Transparency

Provides dial dimensions, hole placements, and transparency requirements.

Solar Cell Unit

Solar Cell Unit Diagram and Sections

Illustrates the solar cell unit, terminals, and cross-sectional views.

Attention-01

Solar Cell Unit Handling Precautions

Guidance on avoiding damage to the solar cell surface and ensuring dial transparency.

Secondary Battery Installation

Steps for installing the secondary battery unit, including system reset.

Attention-02

Setting Stem and Casing Precautions

Instructions for setting stem removal and attention to casing structure.

Hand Setting and Charging Cautions

Guidance on setting hands, removal, and cautions regarding charging temperatures.

Attention-03

Dial Setting Procedure

Explains how the dial is secured by guide poles on the solar cell unit.

Operation-01

Crown and Button Operation

Details crown positions (0, 1st, 2nd click) and button functions for chronograph.

Zero Position and System Reset

Procedure for setting chronograph hands to zero and performing a system reset.

Operation-02: Chronograph Functions

Chronograph Measurement Modes

Illustrates standard, accumulated elapsed, and split time measurement modes.

Chronograph Operation Summary

Overview of chronograph measurement capabilities and increments.

Operation-02: Chronograph Visuals

Chronograph Operation Steps

Visual guide for chronograph start, stop, split, and reset operations.

Chronograph Limits and Conditions

Notes on chronograph stop after 60 minutes and function invalidity.

Parts List and Disassembly Guide Overview

Movement Specifications Recap

Summary of movement size, diameter, height, and running time.

Disassembly Chart (1)

Dial and Solar Cell Unit Disassembly

Diagram for disassembling the dial, solar cell unit, and related parts.

Date Corrector and Wheel Disassembly

Steps for disassembling date corrector and intermediate wheel components.

Disassembly Chart (2)

Battery and Circuit Block Disassembly

Illustrates disassembly of the secondary battery, clamp, and circuit block.

Disassembly Chart (3)

Lever and Wheel Component Disassembly

Details disassembly of levers, wheels, pinions, and coil blocks.

Parts List

Component Part Number Reference

Comprehensive list of all parts with their corresponding part numbers.

How to Charge and Start the Watch

Charging Procedure and Cautions

Instructions for charging the watch and important cautions regarding temperature.

Guidelines for Charging Time

Charging Time Estimation

Table providing estimated charging times based on illumination conditions.

Charging Condition Definitions

Definitions of charging conditions A, B, and C for different operational states.

How to Set the Time and Date

Date Setting Process

Step-by-step guide for setting the date using the crown.

Time Setting Process

Step-by-step guide for setting the hour and minute hands using the crown.

How to Use Stopwatch Functions

Stopwatch Measurement Modes

Instructions for standard, accumulated, and split time stopwatch measurements.

Stopwatch Operation Notes

Important notes on stopwatch operation, including limits and hand reset.

Stopwatch Hand Position Adjustment

Minute Hand Adjustment Procedure

Steps to adjust the stopwatch minute hand to the zero position.

1;5-Second Hand Adjustment Procedure

Steps to adjust the stopwatch 1/5-second hand to the zero position.

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