Aquastar Benthos 500 IIvsAquastar Benthos Heritage II

The Aquastar Benthos 500 II is widely praised for its wearability, with reviewers and owners noting its comfortable 42mm case and improved ergonomics over the original, making it easy to wear even on smaller wrists. Its unique monopusher chronograph function, operated by a 2 o'clock pusher, is highlighted as exceptionally useful for everyday timing and racing. The watch features a bespoke automatic Aquastar 1MPS movement and is noted for its quality finishing and attractive price for its heritage and unique complications. However, some sources point out that the "500" in the name is misleading given its 200m water resistance, and the stamped clasp on the beads-of-rice bracelet is considered a drawback at its price point. One owner also noted the difficulty in sourcing replacement parts for older models. Overall, owners and reviewers rate the Aquastar Benthos 500 II highly for its blend of vintage charm, modern wearability, and unique monopusher chronograph functionality.

The Aquastar Benthos Heritage II is widely praised for its significantly improved wearability due to its 40mm case and reduced thickness, noted as 12mm by one source and 11.9mm by others, making it comfortable on smaller wrists. Reviewers and owners appreciate the scaling down of a classic design while retaining key elements, with the sapphire crystal and the manually operated helium release valve (HRV/HEV) being highlighted, the latter sometimes described as a "fidget aid." The watch is considered a fantastic value at its pre-order price of $1,190 on a rubber strap. Some owners miss the dial depth of earlier models, and the dual-crown design with the HRV is seen by some as a stylistic compromise. On balance, owners and reviewers rate the Aquastar Benthos Heritage II highly for its comfortable wearability and excellent value at the price point.