Omega 1143

Data: Omega 1143 (ETA 2890-A2 + Dubois-Dépraz 2020 chronograph module).

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  45 jewels, automatic wind chronograph, 60 s, 30 min, 12 h counter.
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  Size: 30.0 mm.
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  H: = 6.50 mm.
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  N: = 28.800 A/h.
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  Power reserve: 40 h.

Versions:

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  1138: 2890-A2, 60 sec, 30 min conunter, 44 jewels.
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  1140: 2890-2, 60 sec, 30 min, 12 hour counter, gold plated, 46 jewels.
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  1141: 2890-A2, 60 sec, 30 min, 12 hour counter, rhodium plated, 45 jewels.
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  1143: 2890-A2, 60 sec, 30 min, 12 hour counter, rhodium plated, 45 jewels.
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  3220: 2892-A2, 60 sec, 30 min, 12 hour counter, rhodium plated, 47 jewels.