Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsSinn 903 St II

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
903 St II
Sinn903 St II
MSRP $3,942

At a glance

16 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
903 St II41mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
903 St II60h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
903 St II200m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
903 St II$3,942

Full specifications

Case

8 specs
Category
Diver
Tool
Thickness
13mm
14.5mm
Lug-to-Lug
43.5mm
Lug Width
18mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
polished / satinized
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

3 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Indices
Applied

Movement

4 specs
Caliber
Sellita SW220-1
LJP L110
Power Reserve
40h
60h
Jewels
25
26
Complications
None
Date, Chronograph

Pricing

1 specs
MSRP
$1,800
$3,942

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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.

Sinn 903 St II

The Sinn 903 St II is widely praised for its robust build quality, over-engineered feel, and strong value proposition, featuring 200 meters of water resistance and a La Joux-Perret L110 column-wheel chronograph movement. Owners appreciate the hybrid ceramic lume and the practical functionality of the slide rule operated by the bezel. However, reviewers note that the busy slide-rule dial can make time-reading challenging, with some finding the chronograph hand's placement over the "12" numeral less refined. On balance, owners and reviewers rate the Sinn 903 St II highly for its exceptional build quality and value, particularly its robust water resistance and functional slide rule at its price point.

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