Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsGrand Seiko SLGB023

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
SLGB023
Grand SeikoSLGB023
MSRP $12,400

At a glance

10 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
SLGB02340.8mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
SLGB02372h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
SLGB023300m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
SLGB023$12,400

Full specifications

Case

5 specs
Diameter
41mm
40.8mm
Thickness
13mm
12.9mm
Lug-to-Lug
43.5mm
48.5mm
Lug Width
18mm
21mm
Material
316L Stainless Steel
Titanium

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

3 specs
Caliber
Sellita SW220-1
9RB1
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$1,800
$12,400

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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.

Grand Seiko SLGB023

Owners and reviewers widely praise the Grand Seiko SLGB023 for its comfortable 40.8mm titanium case and the smooth winding feel of its Spring Drive 9RB1 movement. The dial's gradient blue "ushio" motif is a highlight, though some reviewers note the bezel's fully lumed scale as a missed opportunity. Enthusiasts are divided on the power reserve indicator's placement and the design of the hour and minute hands. Overall, owners and reviewers rate the Grand Seiko SLGB023 highly for its comfortable titanium case and the refined Spring Drive movement.

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