Side by side

HELM KomodovsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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

Komodo
HELMKomodo
MSRP $295
JDD (Jumbo Day/Date) Anthracite Diver's Automatic
MarathonJDD (Jumbo Day/Date) Anthracite Diver's Automatic
MSRP $3,250

At a glance

14 of 29 specs differ
Diameter
Komodo40mm
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Power Reserve
Komodo40h
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Water Resistance
Komodo300m
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
MSRP
Komodo$295
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

Full specifications

Case

5 specs
Diameter
40mm
46mm
Thickness
15.5mm
18mm
Lug-to-Lug
47mm
55mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel (Anthracite IP)

Crystal & Dial

4 specs
Crystal Shape
Double-Domed
Flat
AR Coating
Yes
Inner
Dial Color
Black
Anthracite
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Seiko Instruments NH35
Sellita SW220-1
Power Reserve
40h
40h
Jewels
24
25
Complications
Date
None

Pricing

1 specs
MSRP
$295
$3,250

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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.

HELM Komodo

The HELM Komodo is widely praised for its excellent build quality, top-notch case finishing, clear double-domed sapphire crystal, wonderfully executed dial, and substantial lume, with reviewers noting its ISO 6425 compliance and 300m water resistance. Owners report a snappy 120-click bezel and appreciate the depth, detail, and finishing for a tool diver at its price point. Some owners find the 15.2mm to 15.5mm height makes the HELM Komodo feel thick and hefty, and the bezel ridges are noted as somewhat uncomfortable to turn, while the clasp design is also flagged as a drawback. On balance, owners and reviewers rate the HELM Komodo highly for its exceptional finishing and lume at its sub-$300 price point.

From video reviewers

The HELM Komodo's double domed sapphire crystal offers excellent optical clarity and minimal distortion. A notable weakness is its limited availability, making it harder to get than some other luxury watches. Reviewers disagree on the watch's lug-to-lug fit, with one reviewer noting it may not suit those with smaller wrists, while another reviewer does not mention this as a concern.

Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

Owners widely praise the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic as a tough, underrated tool watch with lifestyle appeal, highlighting its robust build and tritium lume for excellent legibility. However, its 46mm size is a common criticism, with some finding it heavy and top-heavy, and the OEM rubber strap stiff. One owner noted the watch runs about 10 seconds fast after three days, and the ETA 2836-2 movement offers approximately two days of power reserve. On balance, owners and reviewers rate the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic highly for its robust tool-watch build and legibility, despite its substantial size.

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