Seiko 8R48A Technical Manual page 14

Automatic chronograph
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TECHNICAL GUIDE
Types of oil
AO-3 (Moebius A)
1. Oiling spot
(2) 46 Operating cam
Note :
Make sure to libricate on whole teeth.
(4) 26 Hour chronograph coupling lever
*1
(5) 29 Click spring
(6) 56 Minutes transmission wheel
S-6
S-4
*2
*1
30 Hammer operating lever A
37 Operating cam jumper
29 Click spring
31 Hammer
Oil quantity mark
(3) 31 Hammer
Note :
There must be oil within the range of the arrow.
Back side
14/24
Cal. 8R48A/8R49A
NORMAL QUANTITY
SUFFICIENT QUANTITY
*2
37 Operating cam jumper
28 Hammer operating lever B
29 Click spring
31 Hammer
26 Hour chronograph coupling lever

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