Side by side

Marathon Arctic OSAR 46mm AutomaticvsLongines LONGINES SPIRIT FLYBACK PROTOTYPE

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
LONGINES SPIRIT FLYBACK PROTOTYPE
LonginesLONGINES SPIRIT FLYBACK PROTOTYPE
MSRP $7,400

At a glance

10 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Power Reserve
Arctic OSAR 46mm Automatic40h
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Water Resistance
Arctic OSAR 46mm Automatic300m
LONGINES SPIRIT FLYBACK PROTOTYPE100m
MSRP
Arctic OSAR 46mm Automatic$2,500
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
46mm
42mm
Thickness
13mm
17mm
Lug-to-Lug
43.5mm
49.5mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
White
Green

Movement

1 specs
Caliber
Sellita SW220-1
L791.4

Pricing

1 specs
MSRP
$2,500
$7,400

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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.

LONGINES SPIRIT FLYBACK PROTOTYPE

Owners widely praise the Longines Spirit Flyback Prototype for its attractive finishing, COSC-certified movement, and value as a flyback chronograph. Reviewers highlight its refined 39.5mm case and simplified dial, while some owners appreciate the reduced thickness and improved wearability compared to larger variants, with a lug-to-lug distance noted as potentially long for smaller wrists. The watch features a 68-hour power reserve and a bespoke L791.4 movement. However, the case thickness is a consistent point of discussion, with multiple sources citing 17mm, though some reviewers suggest thoughtful design makes it wear closer to 13.5-14mm. Owners are split on the dial's aesthetic, with some preferring previous configurations with gold subdial rings and concentric textures over the current flat matte dial and cut-off numbers. The leather strap is also noted as stiff and pinching.

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