Side by side

Marathon Arctic OSAR 46mm AutomaticvsBremont Terra Nova 42.5 Chronograph

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

Arctic OSAR 46mm Automatic
MarathonArctic OSAR 46mm Automatic
MSRP $2,500
Terra Nova 42.5 Chronograph
BremontTerra Nova 42.5 Chronograph
MSRP $5,700

At a glance

9 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Terra Nova 42.5 Chronograph42.5mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Terra Nova 42.5 Chronograph40h
Water Resistance
Arctic OSAR 46mm Automatic300m
Terra Nova 42.5 Chronograph100m
MSRP
Arctic OSAR 46mm Automatic$2,500
Terra Nova 42.5 Chronograph$5,700

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
46mm
42.5mm
Thickness
13mm
14.8mm
Lug-to-Lug
43.5mm
Lug Width
18mm
14.8mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
White
Black

Movement

1 specs
Caliber
Sellita SW220-1
ENG345

Pricing

1 specs
MSRP
$2,500
$5,700

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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 Arctic OSAR 46mm Automatic

Owners widely praise the Marathon Arctic OSAR 46mm Automatic for its overbuilt toughness and industrial, instrument-like aesthetic, with some preferring the Arctic dial for legibility. One owner notes the automatic movement may be unnecessary for rough use compared to a quartz option. Reviewers mention the MaraGlo luminous paint and a Sellita SW200-1 automatic movement. Some owners question its rising price and luxury positioning, with one reporting poor lume and movement performance. Overall, owners value the Marathon Arctic OSAR 46mm Automatic for its robust build and utilitarian design.

Bremont Terra Nova 42.5 Chronograph

The Bremont Terra Nova 42.5 Chronograph is noted for its 42.5mm Cupro-Aluminium case, which is described as blocky with satin finishing and minimal polishing, and a bi-directional bronze compass bezel with a black ceramic insert. Owners and reviewers highlight the satisfying winding action of the crown and crisp chronograph pushers, though one reviewer found the start/stop pusher required significant force. The watch features a green gradient dial with full-block Super-LumiNova numerals and is powered by a chronometer-rated automatic movement with a 56-hour power reserve and 100-meter water resistance. The CuAl7Si2 bronze alloy case is expected to patina over time, offering a warmer look and increased scratch resistance. One reviewer noted the prototype's rear sapphire caseback was too dark to appreciate the movement, and conspicuous text around the tourbillon window detracted from the dial.

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