Seiko A860A, Parts Catalogue /Technical Manual

10

HOW TO USE

Cal. A861A

•

How to attach

1)

Set the ring at the 12 o’clock side of the case.

* The two protruding portions of the ring differ in size.  Check that they are set to the hollows of the

corresponding sizes.

Ring (Rear side)

Smaller hollow

Smaller protruding portion

Larger protruding portion

Larger hollow

2)

While holding the ring with a finger, turn the case over, set the air release button to the slot of the case,
and turn the air chamber 90

°

 to fix the ring to the case.

Slot

Case

Air release button

Air chamber

3)

Open the air pump support.  Then, while squeezing the air pump with fingers, put the air chamber
through the gap between the spring bar “A” and case to set it in position.

Air chamber

Air pump support

[Cross-sectional view]

Spring bar “A”

Air pump

4)

Have the hooking portion of the air pump support catch the spring bar “A” securely.  To do so, insert
a coin or the like into the groove of the support and move it toward the 6 o’clock side until it snaps in
place.

[Cross-sectional view]

Coin

Spring bar “A”

Air pump support

Spring bar “A”