eta 7750 User Manual

COMMUNICATION TECHNIQUE
TECHNISCHE MITTEILUNG
TECHNICAL COMMUNICATION
ETA SA Manufacture Horlogère Suisse
SC Marketing & Communication | Bahnhofstrasse 9 | 2540 Grenchen | Switzerland
Phone +41 (0)32 655 71 11 | Fax +41 (0)32 655 71 74 | contact@eta.ch | www.eta.ch
13 ¼´´´ ETA 7750
CT 7750 FDE 465595 14 23.08.2016
13 ¼´´´ Ø 30,00 mm
Hauteur sur mouvement Höhe auf Werk Movement height 7,90 mm
Réserve de marche Gangreserve Running time 48 h
Nombre de rubis Anzahl Rubine Number of jewels 25
Angle de levée du balancier Hebungswinkel der Unruh Angle lift of balance
Typique / Typisch / Typical
49°
Fréquence Frequenz Frequency 28’800 A/h
Les travaux de réparation et de révision ne doivent être effectués que par du personnel dûment formé.
Reparatur- und Revisionsarbeiten dürfen nur von ausgebildetem Fachpersonal ausgeführt werden.
The repair and reconditioning work must only be performed by properly trained personnel.
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eta 7750 Specifications

General

Movement Type	Automatic
Diameter	30.0 mm
Height	7.9 mm
Jewels	25
Power Reserve	48 hours
Frequency	28, 800 vibrations per hour (4 Hz)
Functions	Hours, minutes, date, chronograph

Summary

General Information and Safety

Eye Protection Requirements

Mandatory eye protection for all movement operations.

Environmental Protection Regulations

Legal compliance for waste handling and disposal of watch components.

Explanation of Symbols

Caution! Risk of Material Damage!

Key instructions to prevent physical damage to the movement.

Application Tips and Important Information

Advice on usage and important information.

Specific Information Guidance

Instructions on which specific information must be observed.

List of Movement Components

Order of Assembly: Handsetting Mechanism

Handsetting Mechanism Assembly Steps

Detailed procedure for assembling the handsetting mechanism.

Lubrication Guide (General)

Order of Assembly: Basic Movement (Part 1)

Basic Movement Assembly Steps (Part 1)

Steps for assembling the basic watch movement.

Lubrication Guide (Basic Movement)

Order of Assembly: Basic Movement (Part 2)

Basic Movement Assembly Steps (Part 2)

Further steps for assembling the basic watch movement.

Lubrication Guide (Basic Movement Details)

Order of Assembly: Automatic and Chronograph Mechanisms (Part 1)

Automatic and Chronograph Mechanism Assembly (Part 1)

Steps for assembling automatic and chronograph mechanisms.

Lubrication Guide (Auto/Chrono Part 1)

Order of Assembly: Automatic and Chronograph Mechanisms (Part 2)

Automatic and Chronograph Mechanism Assembly (Part 2)

Further steps for assembling automatic and chronograph mechanisms.

Lubrication Guide (Auto/Chrono Part 2)

Order of Assembly: Automatic and Chronograph Mechanisms (Part 3)

Automatic and Chronograph Mechanism Assembly (Part 3)

Final steps for assembling automatic and chronograph mechanisms.

Lubrication Guide (Auto/Chrono Part 3)

Order of Assembly: Date and Hour Counter Mechanisms (Part 1)

Date and Hour Counter Mechanism Assembly (Part 1)

Steps for assembling date and hour counter components.

Lubrication Guide (Date/Hour Counter Part 1)

Order of Assembly: Date and Hour Counter Mechanisms (Part 2)

Date and Hour Counter Mechanism Assembly (Part 2)

Further steps for assembling date and hour counter components.

Important Operational Warnings

Rapid Date Correction Restriction

Warning regarding rapid date correction when date indicator wheel is engaged.

Lubrication Guide (Date/Hour Counter Part 2)

Movement Operating System Diagram

Removing the Movement from the Case

Bolting and Unbolting Procedure

Steps for securing and releasing the movement from its case.

Cleaning Components

Driver Cannon Pinion Cleaning

Specific cleaning instructions for the driver cannon pinion (Part No. 49).

Adjusting the Minute Counter Finger

Driving the Minute Counter Mechanism

Procedure for engaging and operating the minute counter.

Adjusting Chronograph Wheel Meshing

General Information: Fitting of Hands

Movement Functions Overview

Description of primary functions and pusher operations.

Operational Restrictions

Limitations on date and day correction operations.

Manufacturing Information

Document Version Modifications History