Omega 1861A User Manual

OMEGA SA WORLD SERVICE ORGANIZATION TG-19-C-041-FDE - A - PAGE 1 - 1861A
CALIBRE – KALIBER – CALIBRE
1861A
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12’’’
ø 27 mm
Hauteur mouvement
Werkhöhe
6,87 mm
Movement height
Réserve de marche / Gangreserve / Power reserve 48 h
Nombre de rubis / Anzahl Rubine / Number of jewels 18
Fréquence / Frequenz / Frequency 3 Hz (21’600 A/h)
Angle de levée / Hebungswinkel der Unruh / Angle of lift 50°
Tige de remontoir / Aufzugwelle / Winding stem ø 1,00 mm
12
Guide technique / Technische Anleitung / Technical Guide TG-19-C-041-FDE B
Fait par: pelrom
Date: 28.11.2006

Omega 1861A Specifications

General

Movement	Manual-winding
Caliber	1861
Power Reserve	48 hours
Frequency	21, 600 A/h
Jewels	18
Case Material	Stainless Steel
Case Diameter	42 mm
Water Resistance	50 meters
Dial Color	Black
Crystal	Hesalite
Bracelet	Stainless Steel
Functions	Chronograph

Summary

Caliber 1861A Technical Specifications

Power Reserve

Indicates the operating duration on a full mainspring wind.

Frequency

Defines the oscillation rate of the balance wheel per hour.

General Information and Procedures

Dismantling Procedures

Detailed instructions and precautions for disassembling the watch movement.

Cleaning Procedures

Assembly Procedures

Overview of the multi-stage assembly process for the movement.

Hand Setting Guidance

Required Tools

Parts Listed in Order of Assembly

Lubrication Specifications

Specifies types of oils and greases for lubricating movement parts.

Controls During Assembly

CONTR. 1

CONTR. 2

CONTR. 3

CONTR. 4

CONTR. 5

Controls and Adjustments After Assembly

Gear Penetration Check (Fig. 3)

Inspect and adjust gear meshing depth for proper function.

Checking the Accordment (Fig. 4)

Checking the Position of Finger-Piece (Fig. 5)

Check Hour Counter Functions (Fig. 8)

Spare Part Information by Case Type

Regulation and Timing

Timing Positions

Specifies the dial-up positions for timing the watch.

Limit Values