
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.
4 colorways
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The Addiesdive Tuna Automatic Dive Watch AD2090 features a black dial with a gritty texture and warm gold markers, offering a distinct personality. Owners widely consider Addiesdive watches to represent good value, noting the robust Seiko NH35 automatic movement and decent build quality. However, some users express skepticism regarding the advertised water resistance ratings for actual diving and the long-term reliability of warranties. One owner found the steel strap clip quality to be less than ideal, and the bracelet uncomfortable, requiring a watchmaker for sizing due to arthritis. On balance, owners rate the Addiesdive Tuna Automatic Dive Watch AD2090 highly for its unique dial aesthetics and value proposition, despite some concerns about water resistance and bracelet comfort.
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