Side by side

Bremont Altitude ChronographvsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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

Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300
JDD (Jumbo Day/Date) Anthracite Diver's Automatic
MarathonJDD (Jumbo Day/Date) Anthracite Diver's Automatic
MSRP $3,250

At a glance

10 of 29 specs differ
Diameter
Altitude Chronograph42mm
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Power Reserve
Altitude Chronograph40h
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Water Resistance
Altitude Chronograph100m
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
MSRP
Altitude Chronograph$6,300
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
42mm
46mm
Thickness
14.7mm
18mm
Lug-to-Lug
55mm
Lug Width
14.7mm
22mm
Material
316L Stainless Steel (DLC coated)
316L Stainless Steel (Anthracite IP)
Water Resistance
100m
300m

Crystal & Dial

1 specs
Dial Color
Silver
Anthracite

Movement

1 specs
Caliber
BE-50AE
Sellita SW220-1

Pricing

1 specs
MSRP
$6,300
$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 Altitude Chronograph

Owners note faint marks on the case sides and back, with minor wear and creasing on the strap. Reviewers flag the "DANGER EJECTION SEAT" wordmark on the dial as a divisive design choice that disrupts the MB series' usual stark tone, though they praise the improved smoothness and click precision of the Roto Click rotating bezel. On balance, the Bremont Altitude Chronograph elicits mixed reactions, with design elements like the dial text being a point of contention for 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.

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