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eta 2892A2 User Manual

eta 2892A2
25 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
11 ½´´´ ETA 2892A2
CT 2892A2 FDE 300054 09 18.11.2013
11 ½´´´ Ø 25,60 mm
Hauteur sur mouvement Höhe auf Werk Movement height 3,60 mm
Réserve de marche Gangreserve Running time 42 h
Nombre de rubis Anzahl Rubine Number of jewels 21
Angle de levée du balancier Hebungswinkel der Unruh Angle lift of balance 51°
Fréquence Frequenz Frequency 28’800 Hz
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 2892A2 Specifications

General IconGeneral
Caliber2892A2
TypeAutomatic
Diameter25.6 mm
Height3.6 mm
Jewels21
Power Reserve42 hours
FunctionsHours, minutes, seconds, date
Frequency28, 800 vibrations per hour (vph)

Summary

General Information and Safety

Work Preparation and Eye Protection

Guidance on preparing for work and mandatory eye protection for all interventions.

Environmental Protection and Waste Management

Legal requirements for waste handling, disposal, and prevention of water pollution during watch maintenance.

Symbols and Warnings Explained

Explanation of warning symbols for material damage and informational icons.

Liability Disclaimer

ETA SA disclaims liability for damages arising from failure to observe technical communication.

List of Components

Component Illustrations

Assembly: Hand-Setting Mechanism

Assembly Steps and Lubrication

Detailed steps for assembling the hand-setting mechanism, including lubrication requirements and specific product handling.

Torque Specifications

Minimum torque values for loosening components during assembly or disassembly of the hand-setting mechanism.

Assembly: Basic Movement

Basic Movement Assembly Steps

Detailed steps for assembling the basic watch movement, covering various stages and components.

Lubrication and Torque Specifications

Lubrication types, products, and minimum torque values for components of the basic movement.

Assembly: Self-Winding Mechanism

Assembly Steps and Lubrication

Detailed steps for assembling the self-winding mechanism, including lubrication and handling instructions.

Torque Specification

Minimum torque value for loosening components of the self-winding mechanism.

Assembly: Calendar Mechanism

Assembly Steps and Lubrication

Detailed steps for assembling the calendar mechanism, with lubrication and torque specifications.

Torque Specifications

Minimum torque values for loosening calendar mechanism components.

Hand Fitting Heights

Document Modifications History

Crown Operation and Functions

Three-Position Crown Usage

Instructions for using the watch crown in its three positions for winding, date, day, and time setting.

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