Side by side

Marathon Arctic OSAR 36mm AutomaticvsZelos Spearfish 3

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

Arctic OSAR 36mm Automatic
MarathonArctic OSAR 36mm Automatic
MSRP $1,200
Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

8 of 29 specs differ
Diameter
Arctic OSAR 36mm Automatic36mm
Spearfish 340mm
Power Reserve
Arctic OSAR 36mm Automatic40h
Spearfish 340h
Water Resistance
Arctic OSAR 36mm Automatic300m
Spearfish 3200m
MSRP
Arctic OSAR 36mm Automatic$1,200
Spearfish 3$749

Full specifications

Case

5 specs
Diameter
36mm
40mm
Thickness
13mm
11.5mm
Lug-to-Lug
43.5mm
40mm
Lug Width
18mm
20mm
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
White
Diver - Forged Carbon

Movement

1 specs
Caliber
Sellita SW220-1
La Joux-Perret G100

Pricing

1 specs
MSRP
$1,200
$749

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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.

Marathon Arctic OSAR 36mm Automatic

The Marathon Arctic OSAR 36mm Automatic is noted for its non-tritium dial option, though some owners prefer the 1-12 numeral layout found on other models. One owner found the 36mm size too small for their wrist. Overall, owners appreciate the Marathon Arctic OSAR 36mm Automatic for its non-tritium dial option.

Zelos Spearfish 3

The Zelos Spearfish 3 is widely praised for its exceptional finishing, with razor-sharp polish and flawless brushed transitions that owners feel exceed its price point. The 40mm case is noted for its wearability, and the La Joux-Perret G100 movement offers a 68-hour power reserve, with reported accuracy averaging +2.6 seconds per day. Reviewers highlight the exceptionally smooth bi-directional bezel and a tool-less micro-adjustment clasp described as best-in-class among microbrands. The sapphire sandwich construction and lumed bezel are also cited as desirable features. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and value at its price point.

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