Side by side

Marathon Arctic OSAR 46mm AutomaticvsTudor Black Bay Chrono

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
Black Bay Chrono
TudorBlack Bay Chrono
MSRP $7,000

At a glance

21 of 29 specs differ
Diameter
Arctic OSAR 46mm Automatic46mm
Black Bay Chrono41mm
Power Reserve
Arctic OSAR 46mm Automatic40h
Black Bay Chrono70h
Water Resistance
Arctic OSAR 46mm Automatic300m
Black Bay Chrono200m
MSRP
Arctic OSAR 46mm Automatic$2,500
Black Bay Chrono$7,000

Full specifications

Case

9 specs
Category
Diver
Chronograph
Diameter
46mm
41mm
Thickness
13mm
14.4mm
Lug-to-Lug
43.5mm
46mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Brushed + Polished + Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
White
Black
Indices
Applied

Movement

7 specs
Caliber
Sellita SW220-1
MT5813
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Chronograph, Date

Pricing

1 specs
MSRP
$2,500
$7,000

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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.

Tudor Black Bay Chrono

Owners widely praise the Tudor Black Bay Chrono as a fantastic offering. Reviewers note the 41mm case's 200-meter water resistance and its channeling of vintage chronograph design, with the reverse panda dial offering excellent legibility. However, one reviewer points out that the white lume on the panda dial can blend with the hands and markers, and the snowflake hand can obscure the 45-minute chronograph totalizer. Overall, owners rate the Tudor Black Bay Chrono highly for its strong design and legibility, despite minor legibility concerns on certain dial configurations.

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