Heimdallr Shark Sub AutomaticvsSeiko 5KX

Owners widely report the Heimdallr Shark Sub Men's Automatic Watch offers impressive looks and build quality for its price. The watch is praised for its readability and good QC, with one owner specifically appreciating the shark logo. However, some find the watch uncomfortable due to its weight and sharp edges, and the bracelet clasp is described as feeling cheap, with the bezel action noted as stiff and having play by some, though others prefer a stiff bezel. On balance, owners rate the Heimdallr Shark Sub Men's Automatic Watch highly for its aesthetic appeal and perceived value.

Owners widely praise the Seiko 5KX for its strong lume and value, with many reporting accuracy within +/-5 to 10 seconds per day, though some experience +/-1 second. The 42.5mm case is noted to wear smaller, and the watch offers a comfortable feel for many. Some owners are split on the bracelet quality, with opinions ranging from "cheaper side" with hollow links to "flimsy-feeling" jubilee. A few quality control issues have been reported, including a failed bezel clickspring and misaligned components. The Seiko 5KX is seen by some as a worthy successor to the original SKX, offering an upgraded movement with hacking and hand-winding capabilities, though others lament the loss of ISO certification and a screw-down crown. Overall, owners rate the Seiko 5KX highly for its excellent lume and value proposition, making it a popular choice for everyday wear.