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Monterey Watch Co. Sea-Siren
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Case
- Diameter
- 41mm
- Material
- Stainless Steel
- Water resistance
- 200m
Crystal & dial
- Crystal
- Sapphire
- Dial color
- Blue
- Lume
- Super-LumiNova BGW9
Movement
- Caliber
- Seiko NH35
- Type
- Automatic
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.
Market
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Community
Owners widely praise the Monterey Watch Co. Sea-Siren for its exceptional build quality relative to its price point, often comparing it favorably to brands in the $600 range. The finishing is noted to exceed expectations, and the 41mm case provides a comfortable and durable feel for daily wear. One owner reports their Sea-Siren’s Seiko NH35 movement runs at +2 seconds per day after a customer service-assisted replacement, highlighting the brand's support. Overall, owners rate the Monterey Watch Co. Sea-Siren highly for its outstanding value and refined finishing.
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