Side by side

Marathon Arctic OSAR 46mm AutomaticvsBremont Terra Nova 40.5

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 40.5
BremontTerra Nova 40.5
MSRP $3,250

At a glance

9 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Terra Nova 40.540.5mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Terra Nova 40.540h
Water Resistance
Arctic OSAR 46mm Automatic300m
Terra Nova 40.5100m
MSRP
Arctic OSAR 46mm Automatic$2,500
Terra Nova 40.5$3,250

Full specifications

Case

6 specs
Category
Diver
Field
Diameter
46mm
40.5mm
Thickness
13mm
11.11mm
Lug-to-Lug
43.5mm
Lug Width
18mm
22mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
White
Green

Movement

1 specs
Caliber
Sellita SW220-1
ENG300

Pricing

1 specs
MSRP
$2,500
$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.

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 40.5

The Bremont Terra Nova 40.5 Date Bronze is highlighted for its CuAl7Si2 bronze alloy case, which provides a warm, luxurious appearance and develops a gradual patina. It includes a gradient green dial with prominent Super-LumiNova numerals and a 40.5mm diameter. The watch is powered by the caliber BE-36AE, offering a 38-hour power reserve and 100m water resistance. The Bremont Terra Nova 38, a time-only field watch, features a 904L stainless steel case and vintage-inspired beige Super-LumiNova. Reviewers noted a preference for a screw-down crown and caseback for a field watch. On balance, reviewers praise the Bremont Terra Nova 40.5 Date Bronze for its distinctive bronze case and attractive dial, while noting the Terra Nova 38's utilitarian design and a preference for more robust water-resistance features on a field watch.

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