
Seiko
Seiko's third-party supply version of the 4R35, sold to external watch brands and modders worldwide. Adds hacking and hand-winding over the 7S26 it effectively replaced. The NH35 has become the default automatic movement for watch modding and microbrand watches, thanks to its low cost, reliability, and wide availability of compatible parts including dials, hands, and cases in the Seiko-compatible format.
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The community take
Owners widely praise the Addiesdive Automatic Watch Diver's 200M NH35 for its value and robust Seiko NH35 movement, with one owner noting the 41mm case size is good for a 7-inch wrist and the packaging is a nice addition. However, some owners question the long-term viability of warranties and the water resistance for actual diving, and one owner dislikes the seconds hand, considering it cheap. A reviewer flagged a scratch-prone mineral crystal, a hollow-sounding bezel that spins too easily, and a rattly oyster bracelet with push pins on a quartz model, though they praised the case finishing, clasp, and lume as excellent for the price. Another reviewer noted the bezel rotates too easily and has rough edges, and the crown is uncomfortable. Accuracy varies, with one owner reporting poor performance and a need for manual winding after only 12 hours, while others find the NH35 movement dependable.
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