
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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Owners widely praise the Addiesdive 39mm Automatic Watch Diver's 100M NH35 for its value, solid stainless steel construction, and comfortable 39mm dimensions with a 49mm lug-to-lug and 12mm thickness, suitable for a 7-inch wrist. The reliable Seiko NH35 automatic movement, sapphire crystal with AR coating, and 100m water resistance are frequently highlighted strengths. However, some owners find the seconds hand looks cheap, the bezel action rough and too easily rotated, and the crown operation uncomfortable. One owner reported poor power reserve performance, needing manual winding after only 12 hours. Overall, owners rate the Addiesdive 39mm Automatic Watch Diver's 100M NH35 highly for its impressive features and wearability at its price point.
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