Glycine Combat Sub Box CeramicvsMarnaut Dark Surge 300

Owners widely praise the Glycine Combat Sub Box Ceramic for its exceptional thinness, comfortable 41mm case, and unique, non-homage design, with one owner calling it the best dive watch under $400 due to superior finishing and value. The bezel action is described as solid and precise, and the dial is legible with good lume on the hands. However, multiple sources flag inconsistent power reserve, sub-par lume on the markers that fades quickly, and a subpar stock strap or bracelet. One owner reported the bezel detaching after a light bump, raising questions about build quality, while others note potential issues with the stem or anti-reflective coating. Accuracy figures vary, with one owner seeing it run about 2.5 seconds fast per day. Overall, owners rate the Glycine Combat Sub Box Ceramic highly for its comfortable thin case and unique design at its price point.

The Marnaut Dark Surge 300 is noted for its distinctive "sea urchin" dial pattern and original design. Reviewers consistently mention the lack of minute markers on the bezel, which is seen as a drawback for traditional diving functionality, and some note a small amount of backward play in the bezel. The case size is described as having a larger wrist presence than its dimensions suggest, with one source stating the 41mm case and another the 42mm case, and lug-to-lug measurements around 52-53mm. One source reports the movement as a Sellita SW200-1 automatic with a 41-hour power reserve and 300m water resistance, while others state it is a Miyota 9015, with one noting audible rotor noise and another an average accuracy of 12 seconds fast per day. On balance, owners and reviewers find the Marnaut Dark Surge 300 to be a capable daily watch with a unique dial at a good value, despite noted bezel and dial marker limitations.