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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

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Fig. 5

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Fig. 6

Buren 1322

Features
automatic
sweep second
date: set by changing 23-24h
since ca. 1966/67 changing 22-24h

Data
12.5''', Dm= 28.15mm, Do= 28.5mm
H= 3.25mm
(rotor +0.35mm)
F= 1.5mm
T= 1.8mm
17/21/30 jewels
f = 19800 A/h
power reserve 54h

Balance staff U3085

Stem W3060

Mainspring / battery
1.0 x 9.5 x 0.10mm

Hands
1.40 x 0.80 x 0.18mm

Comments about the data

Remarks
1962-
micro rotor, double jewel bearing if 21 or 30 jewels
double excenter regulator for curb pins and stud carrier
selfwinding gear with direction switching by a pinion floating between two huge jewels (Fig.6)
indirectly driven minute and second allow a low profile
(details cf. Buren 1320)
since 1966/67 minor modifications of base plate and simplified date driver (Fig.5)

family:
1280: only hour, minute
1281: date for flat dial
1282: date for domed dial
1320: second
1321: second, date for flat dial
1322: second, date for domed dial
The assignment of flat/domed dial is based on few investigated watches. Possibly Buren didn't sign carefully, since the Flume K3 mentions it vice versa.

Example, year: signature; shock device
1-2) 1967: M7, SX, D, Bulova Watch Co, 12EBACD, Swiss, 30 Jewels; Incabloc
(Bulova 12EBACD old, Buren 1322 alt)
3-5) 1967: M7, SX, D, Bulova Watch Co, 12EBACD, Swiss, 30 Jewels; Incabloc
(Bulova 12EBACD new, Buren 1322 new)

Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft


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