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 San Martin BB58 NH35 Automatic SN008C for its value, with one owner calling it a "strap monster watch" and preferring it over a Tudor. The NH35 automatic movement is present, and the 40mm case is noted. Some owners find the SN0008 "bland" and wearing "far too flat," while others consider the finishing "very good" despite being slightly lower than other variants. Owners note significant price differences between the official site and AliExpress, especially during sales events. On balance, owners rate the San Martin BB58 NH35 Automatic SN008C highly for its value and versatility, though opinions on its aesthetic appeal are divided.
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