Side by side

Marathon Arctic OSAR 46mm AutomaticvsNivada Grenchen F77 MK2 41mm Automatic

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
F77 MK2 41mm Automatic
Nivada GrenchenF77 MK2 41mm Automatic
MSRP $1,460

At a glance

15 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
F77 MK2 41mm Automatic41mm
Power Reserve
Arctic OSAR 46mm Automatic40h
F77 MK2 41mm Automatic38h
Water Resistance
Arctic OSAR 46mm Automatic300m
F77 MK2 41mm Automatic100m
MSRP
Arctic OSAR 46mm Automatic$2,500
F77 MK2 41mm Automatic$1,460

Full specifications

Case

8 specs
Category
Diver
Sport
Diameter
46mm
41mm
Thickness
13mm
12.2mm
Lug-to-Lug
43.5mm
46.2mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m
Caseback
Solid
316L Steel Caseback

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
White
Meteorite
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW220-1
Soprod M100
Beat Rate
28,800 vph
28 vph
Power Reserve
40h
38h

Pricing

1 specs
MSRP
$2,500
$1,460

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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.

Nivada Grenchen F77 MK2 41mm Automatic

The Nivada Grenchen F77 MK2 41mm Automatic is praised for its comfortable wearability, with reviewers highlighting its reworked integrated lug design and slim case profile. The "carbon effect" basketweave dial is frequently cited as a modern, distinctive touch on the retro design. The watch is powered by the Soprod P024 automatic movement, which has a 38-hour power reserve. Some find the gold-plated version loud, and the dauphine hands lack lume. The stainless steel model is priced at $1,460 to $1,560 USD. On balance, reviewers consider the Nivada Grenchen F77 MK2 41mm Automatic a strong integrated bracelet option at its price point, lauded for its unique design and comfortable fit.

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