Aquastar Benthos Heritage IIvsMarathon GSAR (Government Search & Rescue) Diver's Automatic
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Benthos Heritage II

GSAR (Government Search & Rescue) Diver's Automatic
Diameter
40mm
41mm
Lug-to-Lug
44mm
lowest
48mm
Thickness
11.9mm
lowest
14mm
Water Resistance
300m
300m
MSRP
n/a
$2,500
Movement
Sellita SW200-1
Sellita SW200-1
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
The Aquastar Benthos Heritage II is praised for its modern execution of a vintage design. Reviewers did not cite any shared weaknesses.
The Marathon GSAR (Government Search & Rescue) Diver's Automatic is widely praised as a versatile and well-made tool watch, with reviewers highlighting its legibility, utilitarian build, and comfort. Owners appreciate the tritium gas tubes for exceptional illumination in darkness, a feature noted as superior to some alternatives. The 41mm case size is considered ideal by some, though one owner found it wore tall and bumped on objects. While the watch is generally seen as a solid value for a Swiss-made tool watch, some owners have reported quality control issues requiring warranty service. Overall, owners and reviewers rate the Marathon GSAR (Government Search & Rescue) Diver's Automatic highly for its robust build and constant legibility from tritium.
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