Side by side

Marathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsSeiko Prospex Sea PADI Special Edition

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
Prospex Sea PADI Special Edition
SeikoProspex Sea PADI Special Edition
MSRP $1,200

At a glance

13 of 29 specs differ
Diameter
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Prospex Sea PADI Special Edition45mm
Power Reserve
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Prospex Sea PADI Special Edition70h
Water Resistance
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
Prospex Sea PADI Special Edition200m
MSRP
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250
Prospex Sea PADI Special Edition$1,200

Full specifications

Case

6 specs
Diameter
46mm
45mm
Thickness
18mm
13.4mm
Lug-to-Lug
55mm
52.6mm
Lug Width
22mm
20mm
Material
316L Stainless Steel (Anthracite IP)
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Anthracite
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW220-1
6R35
Power Reserve
40h
70h
Jewels
25
24

Pricing

1 specs
MSRP
$3,250
$1,200

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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.

Seiko Prospex Sea PADI Special Edition

The Seiko Prospex Sea PADI Special Edition is widely praised for its attractive PADI color schemes, often featuring blue and red accents, and striking dials described as gorgeous and standing out in the light. Owners report excellent build quality and bezel action, with one noting the watch feels like it can take a beating, and another highlighting the lume as among the best. The bracelet is also frequently called high-quality and exceeding expectations for its price point. However, some owners find the case design can make the watch feel top-heavy, and the pin and collar system on the bracelet can be difficult during resizing. The accuracy of the 4R35 movement is noted as +45 to -35 seconds per day, and some may prefer sapphire over the Hardlex crystal. Overall, owners and reviewers rate the Seiko Prospex Sea PADI Special Edition highly for its distinctive aesthetics and robust build at its price point.

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