Seiko 7K52 User Manual
English
31
SPECIFICATIONS
1
Frequency of crystal oscillator ...................
32,768 Hz (Hz = Hertz ... Cycles per second)
2
Loss/gain (monthly rate) .............................
Less than 15 seconds at normal temperature range (5
°
C
~ 35
°
C) (41
°
F ~ 95
°
F)
3
Operational temperature range ..................
–10
°
C ~ +60
°
C (14
°
F ~ 140
°
F)
0
°
C ~ +40
°
C (32
°
F ~ 104
°
F) for water depth
measurement function
4
Driving system ...........................................
Step motor, 4 pieces
5
Display system
TIME/CALENDAR display .......................
Hour, minute and small second hands and date
DEPTH MEASUREMENT display ............
Current depth by DEPTH hand and 1/10 m hand
Maximum depth by MAX. DEPTH hand (in 0.5 m
increments)
Diving time by DIVING TIME hand (in 1/5 minute
increments)
Time submerged by the small hour and minute hands at
the 6 o’clock position
Maximum depth by MAX. DEPTH hand (in 0.5 m
increments)
Diving time by DIVING TIME hand (in 1/5 minute
increments)
Time submerged by the small hour and minute hands at
the 6 o’clock position
LOG DATA display ..................................
Stores details of two dives.
Maximum depth by MAX. DEPTH hand (in 0.5 m
increments)
Average depth by DEPTH hand and 1/10 m hand
Diving time by DIVING TIME hand (in 1/5 minute
increments)
Time submerged by the small hour and minute hands at
the 6 o’clock position
Maximum depth by MAX. DEPTH hand (in 0.5 m
increments)
Average depth by DEPTH hand and 1/10 m hand
Diving time by DIVING TIME hand (in 1/5 minute
increments)
Time submerged by the small hour and minute hands at
the 6 o’clock position
ALARM display .......................................
Small hour and minute hands at the 6 o’clock position
• While disengaged
• While disengaged
: Current time
• While engaged
: Designated alarm time