Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsTudor Black Bay 68

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 68
TudorBlack Bay 68
MSRP $5,475

At a glance

18 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
Black Bay 6843mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
Black Bay 6870h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
Black Bay 68200m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
Black Bay 68$5,475

Full specifications

Case

8 specs
Diameter
41mm
43mm
Thickness
13mm
13.6mm
Lug-to-Lug
43.5mm
46mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Blue

Movement

6 specs
Caliber
Sellita SW220-1
MT5601-U
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$1,800
$5,475

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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 68

The Tudor Black Bay 68 is praised for its METAS Master Chronometer-certified MT5601-U movement, which provides superior accuracy of -2/+4 seconds per day and a 70-hour power reserve. Reviewers highlight its comfortable 13.6mm thickness and the appeal of the Tudor blue dial with a matte black bezel insert. The watch features a brushed and polished 43mm case, a domed sapphire crystal, and a bracelet without faux rivets. On balance, reviewers find the Tudor Black Bay 68 a sensible, larger vintage-inspired diver with excellent timekeeping.

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