Side by side

Marathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsSeiko Astron GPS Solar 2024 Limited 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
Astron GPS Solar 2024 Limited Edition
SeikoAstron GPS Solar 2024 Limited Edition
MSRP $2,300

At a glance

14 of 29 specs differ
Diameter
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Astron GPS Solar 2024 Limited Edition41.2mm
Power Reserve
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Astron GPS Solar 2024 Limited Edition40h
Water Resistance
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
Astron GPS Solar 2024 Limited Edition100m
MSRP
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250
Astron GPS Solar 2024 Limited Edition$2,300

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
46mm
41.2mm
Thickness
18mm
12mm
Lug-to-Lug
55mm
48.5mm
Lug Width
22mm
14mm
Material
316L Stainless Steel (Anthracite IP)
Titanium
Water Resistance
300m
100m

Crystal & Dial

3 specs
AR Coating
Inner
Super-clear coating
Dial Color
Anthracite
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW220-1
3X62
Type
Automatic
Quartz
Jewels
25
10

Pricing

1 specs
MSRP
$3,250
$2,300

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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 Astron GPS Solar 2024 Limited Edition

The Seiko Astron GPS Solar 2024 Limited Edition is widely praised for its light and thin wearability, with owners highlighting its comfortable 39mm size and titanium construction. Reviewers and owners alike commend its excellent lume application, clear and legible dial, and subtle gold accents. The watch offers automatic GPS time adjustment for global time and location updates, a perpetual calendar, and a six-month power reserve, eliminating battery changes. Some owners, however, find its dial too shiny for maximum versatility and note that its size wears larger than its dimensions suggest, making it less of a daily driver for some. A minor point of contention for some is the chapter ring alignment, which was noted as slightly imperfect. Overall, owners and reviewers rate the Seiko Astron GPS Solar 2024 Limited Edition highly for its blend of high-tech functionality, comfortable wearability, and attractive design.

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