Omega Speedmaster Super Racing TPD | Aevitas

If you own a Omega Speedmaster Super Racing (329.30.44.51.02.001, Calibre 9920), here are the correct watch winder settings to keep it running accurately without overwinding.

Note: the Calibre 9920 is a relatively new or uncommon calibre with limited published winder data. The 650 TPD bidirectional setting below follows the manufacturer's calibre family baseline — check your watch's documentation if unsure.

Recommended Winder Settings

Setting Value
Turns per day (TPD) 650
Winding direction bidirectional
Movement Calibre 9920
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Why These Settings Matter

Setting your winder to 650 TPD bidirectional matches the Calibre 9920's power reserve characteristics. Too many turns per day won't damage a modern automatic (the mainspring slips), but it causes unnecessary wear. Too few and your Speedmaster Super Racing will run down and stop, losing time and date.

All Aevitas winders offer programmable TPD settings from 650 to 1,850, so you can dial in exactly 650 for your Speedmaster Super Racing.

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