Side by side

Bremont Supermarine ChronovsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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

Supermarine Chrono
BremontSupermarine Chrono
MSRP $6,850
JDD (Jumbo Day/Date) Anthracite Diver's Automatic
MarathonJDD (Jumbo Day/Date) Anthracite Diver's Automatic
MSRP $3,250

At a glance

8 of 29 specs differ
Diameter
Supermarine Chrono43mm
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Power Reserve
Supermarine Chrono40h
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Water Resistance
Supermarine Chrono300m
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
MSRP
Supermarine Chrono$6,850
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

Full specifications

Case

5 specs
Category
Chronograph
Diver
Diameter
43mm
46mm
Thickness
15.87mm
18mm
Lug-to-Lug
55mm
Material
Stainless Steel (DLC coated)
316L Stainless Steel (Anthracite IP)

Crystal & Dial

1 specs
Dial Color
Black
Anthracite

Movement

1 specs
Caliber
BE-50AE
Sellita SW220-1

Pricing

1 specs
MSRP
$6,850
$3,250

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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.

Bremont Supermarine Chrono

The Bremont Supermarine Chrono's black dial and understated bezel markings allow it to transition effectively from rugged use to evening events. On balance, owners and reviewers find the Bremont Supermarine Chrono to be a handsome and functional watch, with its versatile dial design being a key strength.

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.

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