Squale 1521vsDOXA SUB 300 Carbon

Owners widely praise the Squale 1521 for its classic look and robust build, with specific mentions of its wearable 12.5mm thickness and refined case finishing. The 42mm case is noted by some to wear smaller, closer to 40mm, due to short lugs, feeling solid without being too large. However, opinions on the bracelet vary, with some finding it too flashy or stiff, and one owner reported moisture ingress after a shower due to a loose case back. The crown can be difficult to operate due to deep integration, and the 38-hour power reserve is considered old-school but reliable. Overall, owners rate the Squale 1521 highly for its classic design and wearability, despite some reservations about the bracelet and crown.

The DOXA SUB 300 Carbon is widely praised for its exceptionally lightweight forged carbon case, offering superior comfort and a unique texture, with reviewers calling it a "tactical featherweight." Owners and reviewers alike highlight its vintage dive watch aesthetic, vibrant dial options, and satisfyingly clicky bezel. The COSC-certified automatic movement is noted for reliable timekeeping, with accuracy reported between +0.9 and +5 seconds per day. Some sources mention a 38-hour power reserve as a trade-off for its slimness. The integrated rubber strap is generally found comfortable and adjustable, though one reviewer noted sharp edges on the clasp and another that the strap requires cutting to size. The bezel's no-decompression markings are flagged as potentially outdated for modern diving. Overall, owners and reviewers rate the DOXA SUB 300 Carbon highly for its unique lightweight construction and compelling vintage design at the price point.