Universal Geneve 281, 282, 283, 284 (12-13.5'''), Winding stem, DCN: 1312b

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  DCN no: 1312b
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  Thread: 120
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  For chronograph: Uni-Compax, Compax, Tri-Compax (12 -13.5''').
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  Fits cal: 281, 282, 283, 284

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  A: = 69
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  B: = 90
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  C: = 130
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  D: = 120
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  F: = 364

Versions: Height: 5.55 - 7.15 mm.

With Breguet hairspring: 281 (12'''), 283 (13'''). With flat hairspring: 381 (12'''), 383 (13'''), 481 (14''').

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  Uni-Compax: 60 s, 30/45 min counter, H=5.55 mm.
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  Compax: 60 s, 30 min, 12 h counter, H=6.35 mm.
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  Tri-Compax: 60 s, 30 min, 12 h counter, date, month, moon phase, H=7.15 mm.

Versions: Height: 6.05 - 7.65 mm.

With Breguet hairspring: 285 (14'''), 287 (15'''), 292 (15.75'''). With flat hairspring: 385, 386 (14''').

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  Uni-Compax: 60 s, 30/45 min counter, H=6.05 mm.
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  Compax: 60 s, 30 min, 12 h counter, H=6.85 mm.
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  Tri-Compax: 60 s, 30 min, 12 h counter, date, month, moon phase, H=7.65 mm.