Phoibos LeviathanvsPompeak Sub-Aquatic
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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.

Leviathan

Sub-Aquatic
Diameter
40mm
40mm
Lug-to-Lug
48mm
48mm
Thickness
13mm
13mm
Water Resistance
200m
200m
Power Reserve
n/a
38h
MSRP
$399
lowest
$915
Movement
Seiko NH35
Sellita SW200-1
Case
1 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Phoibos Leviathan is widely praised for its superb case finishing, generous lume, and original design elements, offering excellent value. Owners consistently highlight the quality of the bracelet, including its milled clasp with quick adjustments and on-the-fly microadjustment on newer models, and the visually striking, legible dials. Some owners find the watch heavy and large, with one suggesting a smaller 37mm or 38mm case size would be ideal, and others note the stock rubber strap can be thick and sticky. Accuracy varies, with some reporting it keeps accurate time out of the box, while others note a loss of 5-10 seconds per day without a winder. The bezel's jimping is also flagged as potentially causing fingers to slip. On balance, owners rate the Phoibos Leviathan highly for its robust build, excellent finishing, and desirable features at an accessible price point.
The case finishing and bezel action are praised. The bracelet, particularly the clasp, is identified as an area for improvement. Reviewers are split on the watch's wrist presence, with some noting its improved 40mm size and others describing it as having a "beast"-like presence.
The Pompeak Sub-Aquatic is widely praised for its exceptional value, with owners highlighting its 904L stainless steel construction, Swiss Sellita SW200-1 movement, and ceramic bezel insert. The fit and finish are considered superior to lesser alternatives, and the bracelet receives particular commendation. One owner specifically points to the pleasing color gradient on the waffle dial as a standout feature. Overall, owners rate the Pompeak Sub-Aquatic highly for its exceptional quality and stupendous value for money.
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