Seiko V172A - How to Identify the Gear Train Parts

TECHNICAL GUIDE
Cal. V172A/V174A
18/25
● How to identify the gear train parts
35 SMALL SECOND
WHEEL
0240 511
38 FIFTH WHEEL AND
PINION
0701 581
39 FIRST INTERMEDIATE
1/5-SECOND
COUNTING WHEEL
0885 590
41 INTERMEDIATE
MINUTE COUNTING
WHEEL
0950 590
42 MINUTE COUNTING
WHEEL
0902 500
45 CENTER WHEEL
FOR ALARM
0902 502
34 1/5-SECOND
COUNTING WHEEL
0888 501
36 FORTH WHEEL AND
PINION
0241 583
37 THIRD WHEEL AND
PINION
0231 580
40 SECOND INTERMEDIATE
1/5-SESOND COUNTING
WHEEL
0885 591
43 MINUTE WHEEL
0261 580
46 MINUTE WHEEL FOR
ALARM
0261 582
44 INTERMEDIATE
ALARM WHEEL
0950 590
53 ROTOR
4146 710
54 CHRONOGRAPH ROTOR
FOR 1/5 SECOND
4146 710
55 MINUTE COUNTING
ROTOR
4146 710
52 ROTOR FOR ALARM
4146 710
58 SETTING WHEEL
0281 580
62 CENTER WHEEL
SPRING
4283 581
Note ◆ The INTERMEDIATE MINUTE COUNTING WHEEL and the INTERMEDIATE ALARM WHEEL are the same.
◆ThefollowingROTORsarethesame.•ROTOR
•CHRONOGRAPHROTORFORMINUTE
•ALARMROTOR
•CHRONOGRAPHROTORFOR1/5SECOND