Side by side

Phoibos LeviathanvsGrand Seiko SLGC006

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

Leviathan
PhoibosLeviathan
MSRP $399
SLGC006
Grand SeikoSLGC006
MSRP $22,600

At a glance

11 of 29 specs differ
Diameter
Leviathan40mm
SLGC00643.2mm
Power Reserve
Leviathan40h
SLGC00672h
Water Resistance
Leviathan200m
SLGC006100m
MSRP
Leviathan$399
SLGC006$22,600

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
40mm
43.2mm
Thickness
13mm
15.4mm
Lug-to-Lug
48mm
51.5mm
Lug Width
20mm
23mm
Material
Stainless Steel
Gold
Water Resistance
200m
100m

Crystal & Dial

1 specs
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
SII NH35
9SC5
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$399
$22,600

Follow this matchup

Get a note when Phoibos Leviathan vs Grand Seiko SLGC006 gets more votes, a community discussion, or a price drop. No account needed.

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.

Grand Seiko SLGC006

Owners widely praise the Grand Seiko SLGC006's stunning copper Mount Iwate dial and its high-frequency Caliber 9SC5 movement, which operates at 36,000vph and achieves accuracy between -3/+5 seconds per day with a 72-hour power reserve. Reviewers note the watch's large 43.2mm size, though some find the Evolution 9 case design improves wearability. Criticisms include the $22,600 price point, the 4:30 date window placement, and the lack of bracelet micro-adjustment. Opinions on the dial are split, with some finding it beautiful and others comparing it to rust or the Australian outback. Some question the extent of the gold accents for a "two-tone" designation. Overall, owners and reviewers acknowledge the Grand Seiko SLGC006's striking aesthetics and advanced movement, but debate its value proposition and certain design choices.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.