Side by side

Marathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsZelos Hammerhead 43 Field

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

JDD (Jumbo Day/Date) Anthracite Diver's Automatic
MarathonJDD (Jumbo Day/Date) Anthracite Diver's Automatic
MSRP $3,250
Hammerhead 43 Field
ZelosHammerhead 43 Field
MSRP $399

At a glance

9 of 29 specs differ
Diameter
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Hammerhead 43 Field43mm
Power Reserve
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Hammerhead 43 Field40h
Water Resistance
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
Hammerhead 43 Field300m
MSRP
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250
Hammerhead 43 Field$399

Full specifications

Case

5 specs
Category
Diver
Field
Diameter
46mm
43mm
Thickness
18mm
13mm
Lug-to-Lug
55mm
43mm
Material
316L Stainless Steel (Anthracite IP)
316L Stainless Steel

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Anthracite
Purple

Movement

1 specs
Caliber
Sellita SW220-1
Seiko NH38

Pricing

1 specs
MSRP
$3,250
$399

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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 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.

Zelos Hammerhead 43 Field

The Zelos Hammerhead 43 Field is praised for its unique bronze case patina potential, masculine angular design, and fantastic lume. Owners also highlight the lovely Mosaic Ember and purple agate dials. However, some owners feel the 43mm case wears large, suited for wrists 7.5 inches and up, and a reviewer notes its substantial 17mm thickness. The rubber strap is disliked for making the watch feel top-heavy, and the date window is considered tiny and hard to see. Some owners express disappointment with the NH movement. Overall, owners and reviewers rate the Zelos Hammerhead 43 Field well for its distinctive design and dial appeal at its price point.

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