Side by side

Marathon Arctic OSAR 46mm AutomaticvsSinn 856 S UTC

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
856 S UTC
Sinn856 S UTC
MSRP $2,938

At a glance

18 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
856 S UTC40mm
Power Reserve
Arctic OSAR 46mm Automatic40h
856 S UTC38h
Water Resistance
Arctic OSAR 46mm Automatic300m
856 S UTC200m
MSRP
Arctic OSAR 46mm Automatic$2,500
856 S UTC$2,938

Full specifications

Case

9 specs
Category
Diver
Tool
Diameter
46mm
40mm
Thickness
13mm
11mm
Lug-to-Lug
43.5mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
black
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
White
Black
Indices
Applied
Lume
None
Luminescent

Movement

3 specs
Caliber
Sellita SW220-1
SW 330-1
Power Reserve
40h
38h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$2,500
$2,938

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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.

Sinn 856 S UTC

Owners widely praise the Sinn 856 S UTC for its legibility, robust build, and versatile wearability as an everyday and business-casual timepiece. The watch is frequently chosen for its adventurous UTC functionality and durability features, including tegimentation, anti-magnetism, and humidity protection, making it suitable for frequent travel. One owner reports accuracy of approximately -10 seconds per day. On balance, owners rate the Sinn 856 S UTC highly for its practical functionality and rugged construction.

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