Distinction between the hour and
minute rotor and the seconds rotor
Cal. 7D56A
14/44
PARTS LIST
DISTINCTION AMONG THE DIFFERENT TYPES OF JUMPERS
36 DATE JUMPER FOR TEN’S DIGIT
34 MONTH INDICATOR WHEEL JUMPER
1024504
35 IMMEDIATE MONTH INDICATOR
WHEEL SPRING
1024503
11 DATE JUMPER FOR UNITS DIGIT
12 YEAR INDICATOR DRIVING WHEEL SPRING
0353529
l
How to discriminate resembled parts
l
Tools and consumables required for disassembling/reassembling
• Movement holder
Universal movement holder (S-682)
• Watch oils
SEIKO watch grease (S-6) and watch oils (AO-3 and AO-2)
S-6
AO-2
AO-3
* The Cal. 7D series requires a precise alignment of its calendar train wheels, jumpers and
springs. These two positioning pins will increase an efficiency of assembling them in
correct positions.
1024501
1024500
HOUR AND MINUTE ROTOR and SECONDS ROTOR
JUMPERS
Positioning pin set (set of 2pins) for
Cal.7D series.
Positioning pin B Positioning pin A
71 H o u r a n d
minute rotor
70 Seconds rotor
4146 523
4146 521
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