Ianos AvyssosvsSeiko Prospex Sea Save the Ocean Special Edition

The Ianos Avyssos is recognized for its historically inspired design, featuring a sandwich dial with lume visible through cut-out markers and a small seconds disc referencing the Antikythera mechanism, alongside hour markers shaped like Greek sponge diver ballast stones. Reviewers note its 44mm angular case with a PVD finish and a blue-to-black dégradé dial. One reviewer flags a disconcerting ratcheting click when tightening the crown. An owner mentions the strap's durability for diving but notes a NATO is included. On balance, owners and reviewers appreciate the Ianos Avyssos for its unique historical design and solid construction at its price point.

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its exceptional and unique dial designs, often described as a highlight with wave patterns, lagoon hues, or even manta rays, offering a "Grand Seiko feel" at a regular Seiko price. Owners and reviewers consistently note the attractive color combinations and textured appearances, making it a standout feature. The watch is generally considered solidly built and good value, with satisfactory lume and smooth bezel operation. However, the bracelet and clasp are frequently criticized as underwhelming, rattly, and lacking a convenient diver's extension, a common complaint across several Seiko models. Some owners also express a desire for exhibition casebacks or note potential quality control issues such as misaligned bezels or day/date wheels. Overall, owners and reviewers rate the Seiko Prospex Sea Save the Ocean Special Edition highly for its visually striking and unique dial designs at an accessible price point.