Glycine Combat Sub BronzevsSinn U18

Owners widely praise the Glycine Combat Sub Bronze for its beautiful and unique patina development, comfortable thin 10mm case, and extraordinary lume. The watch is considered a fun and good value at its price point, with a cool bezel insert and a surprisingly accurate movement. Some owners dislike the shiny, non-bronze buckle, while opinions are split on the dial's gradient, with some appreciating its changing appearance and others disliking it. One owner notes the crown can be slightly difficult to screw down. On balance, owners rate the Glycine Combat Sub Bronze highly for its attractive bronze patina and slim, comfortable wearability at an accessible price.

The Sinn U18 is praised for its unique deep blue/green dial with three-dimensional oxygen bubbles that change with light, and its comfortable, easily adjustable bracelet. Owners find the watch stunning and a piece of history, appreciating the refined hands. The Sinn U18 features a 44mm, 15.5mm thick case made from German submarine steel, offering a 2000-meter dive specification and Sinn's Ar-Dehumidifying technology, powered by a Sellita SW300-1 movement. The case thickness is apparent, and the watch comes as a complete set with box and papers for $3,000-$3,680. On balance, owners and reviewers rate the Sinn U18 highly for its striking dial and robust build.