Bulova 11 ANAC - User Manual

The oscillating weight, held down by a screw gib and made
of antimagnetic alloy, is mounted on its axle located in the
center of the movement and is free to swing in either
direction. Whether the weight turns clockwise or counter-
clockwise, winding of the mainspring occurs.
Mounted on the train bridge, named for this reason,
«combined bridge», the 'automatic mechanism consists of
the oscillating weight and its gear, two reversing gear units
which transmit winding to the crown and ratchet wheels by
the intermediary of a reverser converting wheel, a reduction
gear and a driving gear for crown wheel.
Each reversing gear unit consists of a reversing gear and
a reversing gear pinion, the latter being held in position by
a spring. Whichever way the weight turns, the reversing
gear meshes with the automatic train while the other slips.
In any case, a fairly continuous self-winding action will
follow.
Should the watch be wound by stem and crown, the crown
wheel will make the automatic train turn, but both
reversing gear pinions will slip, therefore causing no inter-
ference with the automatic mechanism.
DIAL SIDE TRAIN SIDE
Height
4.50 mm
4.50 mm
5.20 mm
---_~_--_~--- ----- -_~ - _._------- _~_--- ---- ~- ---- - -- -=--------- -
Scale 1:1
Specifications
Movement Automatic mechanism
11112 Ligne, lever escapement
Diameter of the plate 25.60 mm
Unbreakable and self-lubricated
mainspring
Total running time: 42 hours
Screwless beryllium balance
Compensating alloy hairspring
21,600 beats per hour
Adjustable stud holder
Kif Elastor shock-resistant device
Angle of Lift (Pallet contact): 51°
DESIGNATION OF TYPES
Caliber
Description
11 !\NAC
11 ANACD
11 ANACB
automatic, with center sweep-second
automatic, calendar with center sweep-second
automatic, day and date with center sweep-second

Summary

Specifications

Movement

Details of the watch movement's technical specifications like escapement, diameter, running time, balance, beat rate, etc.

Automatic mechanism

Explanation of how the automatic winding mechanism works, including the oscillating weight and reversing gears.

Characteristics 11 ANAC

Uncasing

Instructions for removing the movement from its case, typically held by casing clamps and screws.

Removing the dial

Steps to remove the dial, including loosening dial screws and removing date/day mechanisms.

Checking the automatic gear

Method to check the transmission of power from the oscillating weight to the ratchet wheel.

Removing the oscillating weight

Procedure to detach the oscillating weight by unscrewing its securing gib.

Releasing the mainspring

How to release the mainspring tension by manipulating the ratchet click and breguet spring.

Cleaning the escapement

Notes on how the balance and pallet can be removed without further disassembly.

The mainspring barrel

Information on the mainspring barrel removal and its unbreakable, pre-lubricated nature.

Reassembling and Oiling the Watch

Dial side Lubrication and Checks

Lubrication points and checks for the winding mechanism, centre stud, and minute wheel on the dial side.

Train side Lubrication and Assembly

Steps for lubricating the gear train, cannon pinion, bridge, and automatic mechanism parts.

Automatic Winding and Minute Wheel Spring Checks

Procedures to verify automatic winding function and minute wheel spring operation.

Specific Caliber Details and Day;Date Mechanism

Caliber Variations

Details and illustrations of specific parts that differ or are added for calibers 11 ANACD and 11 ANACB.

Day and Date Mechanism Operation

Description of the instant date change mechanism, its disassembly/reassembly, and in-case checks.

Setting the Day and Date

Step-by-step guide to setting the day and date using the watch hands, including handling month transitions.

Parts Index

11 ANAC Parts Illustration

An illustrated index of all parts for the 11 ANAC caliber with corresponding part numbers.

Oiling Recommendations

General Oiling Points

Detailed list of lubrication points for various movement components using recommended oils.

Day and Date Mechanism Oiling

Specific lubrication notes for the day and date mechanism, including parts requiring no lubrication.

Bulova 11 ANAC Specifications

General

Brand	Bulova
Model	11 ANAC
Category	Watch
Language	English