Side by side

Marathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsPhoibos Sea Nymph

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
Sea Nymph
PhoibosSea Nymph
MSRP $240

At a glance

11 of 29 specs differ
Diameter
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Sea Nymph36mm
Power Reserve
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Sea Nymph40h
Water Resistance
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
Sea Nymph300m
MSRP
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250
Sea Nymph$240

Full specifications

Case

5 specs
Diameter
46mm
36mm
Thickness
18mm
9.8mm
Lug-to-Lug
55mm
42mm
Lug Width
22mm
18mm
Material
316L Stainless Steel (Anthracite IP)
Stainless Steel

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Anthracite
Blue
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Sellita SW220-1
SWISS RONDA 705
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$3,250
$240

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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.

Phoibos Sea Nymph

Owners widely praise the Phoibos Sea Nymph's unique mother-of-pearl dial and distinctive bezel styling, with some finding it a good fit for smaller wrists. The 36mm case size is considered unisex, though some owners find it too small for larger wrists, while others enjoy it as a summer watch. The consensus is that the Phoibos Sea Nymph is a fun, visually interesting watch, with its polarizing bezel design being a key talking point.

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