Side by side

Marathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsStudio Underd0g Steffany Blue

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
Steffany Blue
Studio Underd0gSteffany Blue
MSRP $800

At a glance

11 of 29 specs differ
Diameter
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Steffany Blue39.5mm
Power Reserve
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Steffany Blue40h
Water Resistance
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
Steffany Blue
MSRP
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250
Steffany Blue$800

Full specifications

Case

7 specs
Category
Diver
Casual
Diameter
46mm
39.5mm
Thickness
18mm
Lug-to-Lug
55mm
Lug Width
22mm
Material
316L Stainless Steel (Anthracite IP)
Stainless Steel
Water Resistance
300m

Crystal & Dial

1 specs
Dial Color
Anthracite
Blue

Movement

2 specs
Caliber
Sellita SW220-1
Type
Automatic
Manual

Pricing

1 specs
MSRP
$3,250
$800

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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.

Studio Underd0g Steffany Blue

Owners widely praise the Studio Underd0g Steffany Blue for its beautiful multilayer dial with a floating effect and vivid Super-LumiNova, with one owner finding it smaller and more beautiful than expected. The 37mm case wears nicely, though some find it slightly small for larger wrists. One owner notes the power reserve can fall short of the advertised 48 hours, sometimes lasting only about a day. Overall, owners rate the Studio Underd0g Steffany Blue highly for its striking dial and luminous display.

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