# Halios Seaforth II Review by A.I. WatchMetrics

## Watch Summary
The Halios Seaforth II is a robust tool diver's watch from Singaporean microbrand Halios, boasting a 42mm 316L stainless steel case with 500m water resistance, a pioneering unidirectional sapphire bezel insert with lumed pip, and highly legible textured dials with applied indices and C3 Super-LumiNova, powered by the Miyota 9015 automatic movement offering 42 hours of power reserve—perfect for adventure enthusiasts and microbrand collectors seeking high-spec performance without mainstream hype.

## Overall Watch Rating: 6.9/10.0

**Material Metric (9.4/10.0)** - Premium 316L stainless steel paired with double-domed sapphire crystal (AR-coated) and sapphire bezel insert delivers build quality on par with Omega's professional divers.

**Dials & Design Metric (9.0/10.0)** - Intricate guilloche or sunburst dials, applied markers, and exceptional lume create a cohesive, legible aesthetic that stands alongside top microbrands like NTH or Escudo.

**Versatility Metric (8.5/10.0)** - With 500m WR, rubber strap compatibility, and balanced 42mm proportions, it transitions seamlessly from underwater adventures to daily casual wear like a Blancpain Fifty Fathoms.

**Cohesiveness Metric (8.5/10.0)** - Halios' singular focus on tool-watch purity shines through in the Seaforth II's harmonious dive-ready form and finishing, evoking a tight collection identity.

**Brand Metric (7.0/10.0)** - Halios secures a strong entry-level luxury score as a cult-favorite microbrand with low production runs, comparable to Pagani Design's upscale peers but with genuine enthusiast cred.

**History & Innovation Metric (6.5/10.0)** - Over a decade of niche dive-watch expertise and innovations like the sapphire bezel place it solidly with brands like Helm, ahead of generic homages.

**Movement Metric (6.1/10.0)** - The Miyota 9015 provides reliable in-house-like performance with hacking and hand-winding, matching entry-level Swiss calibers in Seiko Prospex divers.

**Rarity Metric (5.5/10.0)** - Limited production batches elevate it above mass-market divers, though its $1,200 price keeps rarity in line with other microbrand limited editions.

**Functions Metric (4.7/10.0)** - Core timekeeping plus date suffices for a diver but lags behind multifunction tools like the Citizen Promaster.

**Complications Metric (3.9/10.0)** - A simple date window at 3 o'clock is functional yet basic compared to chronograph-laden divers from Longines.

## Total Performance Score (TPS): 9.9

## WM Collector Grade: A+

## Performance Insights: The Seaforth II shines in materials, design, versatility, and cohesiveness while movement and rarity provide solid support, delivering phenomenal value at $1,195 versus its $52,000 implied price based on metric performance.

## TPS Interpretation: A+: Exceptional value, vastly outperforming price expectations with near-luxury execution in a microbrand package.

## Watch Data
[https://halioswatches.com/cdn/shop/files/SF2_DO_Front_2048x.jpg?v=1690579200] - [Front view showcasing textured dial and sapphire bezel]; [https://halioswatches.com/cdn/shop/files/SF2_DO_Back_2048x.jpg?v=1690579200] - [Solid screw-down caseback]; [https://halioswatches.com/cdn/shop/files/SF2_DO_Lume_2048x.jpg?v=1690579200] - [Strong C3 Super-LumiNova glow on dial, bezel, and hands]; [Seaforth II] - [Seaforth II]; [Halios] - [Halios]; [Seaforth II] - [Seaforth II]; [Singapore] - [Singapore]; [https://halioswatches.com/collections/seaforth-ii] - [https://halioswatches.com/collections/seaforth-ii]; [https://www.hodinkee.com/articles/halios-seaforth-ii-introducing] - [https://www.hodinkee.com/articles/halios-seaforth-ii-introducing]; [Automatic] - [Automatic]; [Miyota 9015] - [Miyota 9015]; [# Secondary] - [1]; [Robust 500m diver with sapphire bezel insert, textured dial, and Miyota automatic] - [Robust 500m diver with sapphire bezel insert, textured dial, and Miyota automatic]; [42] - [42]; [49.5] - [49.5]; [12.8] - [12.8]; [22] - [22]; [500] - [500]; [42] - [42]; [28800] - [28800]; [Super-LumiNova C3] - [Super-LumiNova C3]; [24] - [24]; [316L Stainless Steel] - [316L Stainless Steel]; [Double-domed Sapphire with AR] - [Double-domed Sapphire with AR]; [Unidirectional Sapphire insert with lumed pip] - [Unidirectional Sapphire insert with lumed pip]; [Solid screw-down] - [Solid screw-down]; [Screw-down] - [Screw-down]; [FKM Rubber] - [FKM Rubber]; [Round] - [Round]; [Textured Guilloche] - [Textured Guilloche]; [Central] - [Central]; [Yes] - [Yes]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [Yes] - [Yes]; [Yes] - [Yes]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [Yes] - [Yes]; [Yes] - [Yes]; [Yes] - [Yes]; [Yes] - [Yes]; [Yes] - [Yes]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [No] - [No]; [9.9] - [9.9]; [A+] - [A+]; [52000] - [52000];

**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**