Side by side

Phoibos LeviathanvsSugess Seestern Heritage S436-2 BB GMT

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Leviathan
PhoibosLeviathan
MSRP $399
Seestern Heritage S436-2 BB GMT
SugessSeestern Heritage S436-2 BB GMT
MSRP $299

At a glance

10 of 29 specs differ
Diameter
Leviathan40mm
Seestern Heritage S436-2 BB GMT40mm
Power Reserve
Leviathan40h
Seestern Heritage S436-2 BB GMT35h
Water Resistance
Leviathan200m
Seestern Heritage S436-2 BB GMT10m
MSRP
Leviathan$399
Seestern Heritage S436-2 BB GMT$299

Full specifications

Case

3 specs
Category
Diver
GMT
Thickness
13mm
12.2mm
Water Resistance
200m
10m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Lume
Super-LumiNova
Tritium

Movement

4 specs
Caliber
SII NH35
Seiko NH34
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
35h
Complications
None
GMT, Moonphase, Date

Pricing

1 specs
MSRP
$399
$299

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Phoibos Leviathan

Owners widely praise the Phoibos Leviathan for its excellent value, superb case finishing, and generous lume. The watch is described as visually striking, legible, and well-made, with a unique case design, sapphire crystal, and a comfortable FKM strap or excellent bracelet with a milled clasp and quick adjustments. Some owners note the bezel's staggered jimping can cause fingers to slip, and the beveled crystal can distort the view of indices. Accuracy varies, with one owner reporting losing 5-10 seconds per day without a winder, while others state it keeps accurate time out of the box. The watch is frequently described as heavy and thick, with some owners finding it too large for wrists smaller than 7.5 inches, although newer models feature an improved clasp for better comfort and functionality. Overall, owners rate the Phoibos Leviathan highly for its striking design and impressive finishing at an accessible price point.

Sugess Seestern Heritage S436-2 BB GMT

Owners widely praise the Sugess Seestern Heritage S436-2 BB GMT for its 39mm sizing, 12mm thinness, and light yet solid feel, with many appreciating its legibility due to the matte dial, clear crystal, and strong lume, though one owner flags the lume as a weak point. The case finishing is considered excellent, and the blue dial and satin finish are favorably compared to alternatives. Some owners report issues with a loose bezel, with others finding it improved after tuning, and one owner notes the seconds hand is too short. The bracelet clasp lacks sufficient micro-adjustment and screw pins are difficult to remove. On balance, owners rate the Sugess Seestern Heritage S436-2 BB GMT highly for its comfortable wearability and attractive finishing at the price.

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