Side by side

Phoibos LeviathanvsLongines ULTRA-CHRON CLASSIC

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

Leviathan
PhoibosLeviathan
MSRP $399
ULTRA-CHRON CLASSIC
LonginesULTRA-CHRON CLASSIC
MSRP $3,900

At a glance

20 of 29 specs differ
Diameter
Leviathan40mm
ULTRA-CHRON CLASSIC37mm
Power Reserve
Leviathan40h
ULTRA-CHRON CLASSIC52h
Water Resistance
Leviathan200m
ULTRA-CHRON CLASSIC50m
MSRP
Leviathan$399
ULTRA-CHRON CLASSIC$3,900

Full specifications

Case

8 specs
Category
Diver
Diameter
40mm
37mm
Thickness
13mm
10.95mm
Lug-to-Lug
48mm
44.6mm
Lug Width
20mm
19mm
Finish
Brushed and polished
Water Resistance
200m
50m
Caseback
Solid
Screw-down case back

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Yes
Both sides
Dial Color
Black
Silver
Indices
Applied
Applied indexes

Movement

7 specs
Caliber
SII NH35
L836.6
Beat Rate
28,800 vph
36,000 vph
Power Reserve
40h
52h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$399
$3,900

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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.

Longines ULTRA-CHRON CLASSIC

The Longines ULTRA-CHRON CLASSIC is widely praised for its faithful retro design, high-beat 5Hz movement offering greater precision and a smooth seconds hand, and its value proposition as a new 5Hz watch. Reviewers highlight the L836.6 caliber's TimeLab "ultra chronometer" certification for superior accuracy and shock recovery, and owners find the bracelet very comfortable with easy micro-adjust. Some owners note the design appears dated, and one reviewer points out the dial lacks luminescence and water resistance is only 50m. Owners are split on sizing, with some finding the 40mm case wears larger than expected and recommending the 37mm version. Overall, owners and reviewers rate the Longines ULTRA-CHRON CLASSIC highly for its blend of vintage aesthetics, modern high-beat movement performance, and comfortable wearability.

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