Side by side

Marathon Arctic OSAR 46mm AutomaticvsPraesidus Service Watch

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
Service Watch
PraesidusService Watch
MSRP $259

At a glance

9 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Service Watch42mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Service Watch40h
Water Resistance
Arctic OSAR 46mm Automatic300m
Service Watch100m
MSRP
Arctic OSAR 46mm Automatic$2,500
Service Watch$259

Full specifications

Case

6 specs
Category
Diver
Field
Diameter
46mm
42mm
Thickness
13mm
Lug-to-Lug
43.5mm
Lug Width
18mm
20mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Dial Color
White
Green

Movement

1 specs
Caliber
Sellita SW220-1
Seiko NH35

Pricing

1 specs
MSRP
$2,500
$259

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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.

Praesidus Service Watch

Owners widely praise the Praesidus Service Watch for its 38mm size and solid build quality, with the domed crystal providing vintage distortion and the unbranded dial appealing to history enthusiasts. However, owners report jumpy hand sensitivity when setting the time. One owner experienced a scratchy crown and a noisy rotor on their DD-45, which persisted after warranty service and eventually led to the crown locking mid-way. Concerns about slow customer service and a negative reputation for Praesidus's support are also noted by owners. On balance, owners appreciate the vintage aesthetic and wearability of the Praesidus Service Watch, though persistent customer service issues temper enthusiasm.

From video reviewers

The 38mm case size is a strength for those preferring smaller watches. The dial may show slight discoloration or unevenness in finish.

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