The NH35 has date-only display at 3 o'clock. The NH36 adds a day display. Both are 24-jewel automatic movements with hacking and hand-winding capability. Choose based on whether you want day-date or date-only.

The NH35 has a solid rotor for standard dials. The NH70 series (NH70, NH71, NH72) feature an open-heart cutout visible through skeleton dials. NH72 adds day-date functionality to the skeleton design.

All movements are genuine Seiko/TMI NH-series calibers, the same movements used in Seiko own watches. They are known for reliability, accuracy, and easy serviceability.