Side by side

Marathon Arctic OSAR 46mm AutomaticvsSinn 900 DIAPAL

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
900 DIAPAL
Sinn900 DIAPAL
MSRP $5,000

At a glance

18 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
900 DIAPAL44mm
Power Reserve
Arctic OSAR 46mm Automatic40h
900 DIAPAL42h
Water Resistance
Arctic OSAR 46mm Automatic300m
900 DIAPAL200m
MSRP
Arctic OSAR 46mm Automatic$2,500
900 DIAPAL$5,000

Full specifications

Case

9 specs
Category
Diver
Tool
Diameter
46mm
44mm
Thickness
13mm
15.5mm
Lug-to-Lug
43.5mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
satinized
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
White
Anthracite
Lume
None
Luminescent

Movement

4 specs
Caliber
Sellita SW220-1
LJP L120
Power Reserve
40h
42h
Jewels
25
26
Complications
None
GMT, Date, Chronograph, Pilot's Bezel

Pricing

1 specs
MSRP
$2,500
$5,000

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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 900 DIAPAL

Owners praise the Sinn 900 DIAPAL for its 24-hour GMT hand and Sinn's proprietary technologies including the TEGIMENT case, AR dehumidification, and copper phosphate tablet. The internal rotating bezel is noted as very easy to turn but prone to being knocked out of position, making it unreliable for elapsed time. Some owners find the large dial contributes to an illusion of a bigger watch. On balance, owners value the Sinn 900 DIAPAL for its advanced proprietary technologies and GMT functionality.

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