looking for information to an special Ju 88

[Junghans]

Hello to all memembers
I collect german military clocks and in rare cases I'm in luck and have an
connection to an pilot or the plan

I have the
- the Borduhr (clock) belongs to Horst Bochmann (JG 77), Me-109 pilot
and
- the Borduhr belongs to someone from JG27 who was in May 1942 on the airfield in MARTUBA

now to my question
I bought an Borduhr including the main data plate from an Ju 88
now I wish to have informations to the crew, operations and the fortune of the plane.

- Ju 88 A4,
- WerkNr. 6713
- Abnahme: 21.3.42
plane identification: V4 + OW

I found out
V4 = Kampfgeschwader 1 (Hindenburg)
O = individual identification within the squadron
W = 12.squadron seams to be the IV group

Would be great if someone have additional informations