Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsTudor Black Bay Ceramic

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

OSAR-D (Original SAR with Date) Automatic 41mm
MarathonOSAR-D (Original SAR with Date) Automatic 41mm
MSRP $1,800
Black Bay Ceramic
TudorBlack Bay Ceramic
MSRP $6,125

At a glance

9 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Black Bay Ceramic41mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Black Bay Ceramic70h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Black Bay Ceramic200m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Black Bay Ceramic$6,125

Full specifications

Case

6 specs
Thickness
13mm
14.4mm
Lug-to-Lug
43.5mm
46mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Ceramic
Water Resistance
300m
200m
Caseback
Solid
Engraved

Movement

2 specs
Caliber
Sellita SW220-1
MT5602-1U
Power Reserve
40h
70h

Pricing

1 specs
MSRP
$1,800
$6,125

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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 OSAR-D (Original SAR with Date) Automatic 41mm

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is noted for its highly legible white dial with applied hour markers and a functional date magnifier, emphasizing its tool-watch purpose. Its Swiss-made Sellita SW200-1 movement is considered reliable and serviceable. One reviewer found the bracelet lacked refinement and preferred the rubber strap option. Overall, owners and reviewers appreciate the Marathon OSAR-D (Original SAR with Date) Automatic 41mm for its excellent legibility and robust movement.

Tudor Black Bay Ceramic

The Tudor Black Bay Ceramic's matte ceramic case and bracelet offer a stealthy, scratch-proof aesthetic that shifts from anthracite to gray in light. Reviewers note its comfortable wearability, with one highlighting improved comfort over steel versions, and praise the METAS-certified MT5602-U movement. However, the sandblasted finishing is described as lacking contrast, and the bracelet's butterfly clasp omits on-the-fly adjustment. The PVD-treated steel bezel ring is also flagged as a potential wear-and-tear vulnerability. On balance, reviewers find the Tudor Black Bay Ceramic appealing for its unique ceramic construction and durable, stealthy finish, despite some functional limitations.

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