Momentum Sea Auto 30
$585In stock
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Case
- Diameter
- 42mm
- Thickness
- 12.6mm
- Lug-to-lug
- 47mm
- Lug width
- 20mm
- Material
- Stainless Steel
- Water resistance
- 300m
Crystal & dial
- Crystal
- Sapphire
Movement
- Caliber
- Miyota 9015
- Type
- Automatic
- Power reserve
- 42h
Miyota
Miyota's premium automatic caliber positioned as a Japanese alternative to the ETA 2824-2 and Sellita SW200-1. The 9015 adds hacking, hand-winding, and a smoother 28,800 vph beat rate over the budget 8215. Its thinner profile and higher jewel count make it a favorite among microbrands seeking a reliable mid-range movement that punches above its price point.
Design language
- Case shape
- round
- Dial style
- standard
- Bezel
- rotating_unidirectional
- Bracelet
- metal_oyster
AI-detected from the product image
![Sea Quartz 30 Heritage - Black Dial [38mm]](/_next/image?url=%2Fimages%2Fwatches%2Fmomentum--sea-quartz-30-heritage-black-dial.png&w=1536&q=75)
![Sea Quartz 30 Heritage - Black Dial [38mm] Bundle](/_next/image?url=%2Fimages%2Fwatches%2Fmomentum--sea-quartz-30-heritage-black-dial-value-bundle.png&w=1536&q=75)
2 colorways
Market
Retail$585
eBay listings
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Community
Owners widely praise the Momentum Sea Auto 30 for its value, readability, and overall fit and finish, with many appreciating its comfortable wearability and durable tool watch design. One owner notes the soft tropic strap and that the 42mm case wears smaller than expected. Some owners report that the second hand on quartz variants does not always align with the indices, and one owner found the bezel action stiff with some backplay. Overall, owners rate the Momentum Sea Auto 30 highly for its value and tool watch capabilities.
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