NH35 automatic movement 24 jewels with 3H datewheel: reading the symptoms of a tired movement and how a swap brings the watch back

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USD 88.53
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About this product

The NH35 is the workhorse automatic behind many dive-style watches: hacking seconds, hand-winding, and a datewheel at 3 o'clock. A tired movement shows itself in three ways: the watch stops overnight while unworn, the seconds hand stutters when starting from rest, or the date flips slowly and half-way. Replacing the whole movement is often faster and cleaner than servicing, because hands, dial feet and case fit the same footprint. Before ordering, confirm your watch uses the 3H date position and that the crown stem height matches your case; both differ from NH36 and NH38 variants.

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Pros & cons

Pros


  • Hacking seconds and hand-winding supported
  • Drop-in fit for many dive-style watch cases
  • 3H datewheel matches the most common layout

Cons


  • Crown stem height must match the case or the crown will not seat
  • Not interchangeable with NH36 day-date or NH38 positions
  • Amplitude depends on proper caseback pressure and greasing