Glycine Combat Sub Box CeramicvsSanturce El Tiburón — Swiss Automatic Dive Watch

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 Santurce El Tiburón — Swiss Automatic Dive Watch features a 39mm sandblasted steel case and a flat sapphire crystal with no glare. Reviewers praise its smooth and secure bezel action, along with excellent and even luminous material application on the hands and markers. Overall, owners rate the Santurce El Tiburón — Swiss Automatic Dive Watch highly for its glare-free crystal and excellent lume application.