Advertisement
Quick Links
BULOVA WATCH COMPANY, Inc .
.:..
TECHNICAL BULLETIN
DIAL SIDE
Fig. 1.
BULOVA
®
ACCUTRON
®
QUARTZ
S M
Q®
Series
247
Enlarged view of movement
PRINTED
CIRCUIT SIDE
_
_JNTRODUCTION
r-.
SPECIFICATIONS
The Series 247 is an electronic movement with analog dis-
play. A Quartz Crystal controlled Stepping Motor drives the
gear train and the dial train, causing the hands to turn.
TOOLS
QUARTZ FREQUENCY
32,768 Hz. (cycles per second)
ELECTRONIC CIRCUIT
Integrated circuit with 12 second impulses.
•
Quartz Crystal Deviation Counter
with 32,768 Hz. capacity
•
Bulova Service Meter #700
•
Accessory #9920/6603
•
Non-magnetic tweezers
• Watchmaker's Screwdrivers
•
Watchmaker's Loupe
•
Watchmaker's Hand Tools
IMPORTANT:
NO POWER DISCONNECT SYSTEM
There is no saving of Battery life when watch is stored
with crown in setting
position.
STEPPING MOTOR
Bipolar, 4 steps per
revolution.
Steps every 12 seconds.
JEWELS
3
DIMENSIONS
15.30 mm x 18.10 mm x 4.5 mm
L1GNE SIZE
63/4 x 8
DISPLAY
Model 2470-Minute and
Hour
Hand
See page 2 fig.2
for recommended Power Cell
replacement procedure.
POWER SOURCE
One Silver Oxide Battery 1.55
volts,
"Bulova 247."
Advertisement
