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eta 7751 User Manual

eta 7751
36 pages
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COMMUNICATION TECHNIQUE
TECHNISCHE MITTEILUNG
TECHNICAL COMMUNICATION
ETA SA Manufacture Horlogère Suisse
SC Product 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 7751
CT 7751 FDE 465597 12 19.09.2012
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 7751 Specifications

General IconGeneral
Movement TypeAutomatic
Height7.9 mm
Jewels25
Power Reserve44 hours
Frequency28, 800 vibrations per hour (4 Hz)
FunctionsHours, Minutes, Small Seconds, Chronograph, Day, Date
Diameter30.00 mm

Summary

General Information and Safety

Eye Protection Requirement

Mandatory eye protection for all interventions on the movement.

Environmental Protection Compliance

Observe legal provisions for waste handling and disposal, and prevent water pollution.

Explanation of Symbols

Guide to symbols used for warnings, advice, and specific information in the document.

Component Interchangeability and Variants

Handsetting Mechanism Assembly Order

Handsetting Mechanism Assembly Details

Lubrication for Handsetting Mechanism

Recommended oils and greases for lubricating the handsetting mechanism parts.

Minimum Torque for Loosening (Handsetting)

Specifies minimum torque values for loosening parts in the handsetting mechanism.

Basic Movement Assembly Order

Basic Movement Assembly Details

Lubrication for Basic Movement

Recommended oils and greases for lubricating basic movement components.

Minimum Torque for Loosening (Basic Movement)

Specifies minimum torque values for loosening parts in the basic movement.

Self-winding and Chronograph Mechanisms Assembly Order

Self-winding and Chronograph Mechanisms Assembly

Lubrication for Auto/Chrono Mechanisms

Recommended oils and greases for lubricating automatic and chronograph mechanisms.

Handling Volatile Lubricants

Precautions for handling Moebius Fixodrop FK/BS 8941, a highly volatile product.

Calendar, Moon Phase, Hour Counter Assembly Order

Calendar, Moon Phase, Hour Counter Assembly

Lubrication for Calendar/Moon Phase Mechanisms

Recommended oils and greases for lubricating calendar, moon phase, and hour counter mechanisms.

Component Handling Precautions

Do not wash parts; exchange dirty/rusty ones for original ETA SA pre-lubricated parts.

Movement Removal and Cleaning Procedures

Bolting and Unbolting Procedures

Steps for securing and releasing the movement when removing it from the case.

Cleaning Procedures and Advice

Guidelines for cleaning movement parts, specific advice for plastic and certain components.

Driver Cannon Pinion Fitting

Specific instructions for fitting the driver cannon pinion (No 49) onto its stud.

Adjusting the Minute Counter Finger

Driving the Minute Counter

Steps for adjusting the minute counter finger and its engagement with the wheel.

Adjusting Chronograph Wheel Meshing

Calendar Mechanism Assembly

Moon Phase Mechanism Assembly

General Information on Functions and Restrictions

Fitting of Watch Hands

Instructions for fitting watch hands onto the corresponding movement holder.

Watch Functions Overview

Description of pushers and indicators for various watch functions.

Correction Restrictions

Time restrictions for making date, day, and moon phase corrections to prevent damage.

Hand Fitting Heights and Specifications

Document Version Modifications

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