Longines HydroConquest GMT Watch Winder Settings: TPD & Winding Direction

If you own a Longines HydroConquest GMT (L3.790.4, Longines Calibre L844.5), here are the correct watch winder settings to keep it running accurately.

Recommended Winder Settings

Setting Value
Turns per day (TPD) 650–800
Winding direction bidirectional
Movement Longines Calibre L844.5
Recommended Winder
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Why These Settings Matter

Based on available data, 650–800 TPD bidirectional is the recommended starting point for the Longines Calibre L844.5. Sources conflict on direction; L844.5 is ETA A31-family (bidirectional). Start at 650 bidirectional. Getting the TPD right keeps your HydroConquest GMT running accurately and ready to wear.

For Larger Collections
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