Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsSinn U50 HYDRO SDR with TEGIMENT option

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
U50 HYDRO SDR with TEGIMENT option
SinnU50 HYDRO SDR with TEGIMENT option
MSRP $3,110

At a glance

16 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 41mm41mm
U50 HYDRO SDR with TEGIMENT option41mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 41mm40h
U50 HYDRO SDR with TEGIMENT option40h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 41mm300m
U50 HYDRO SDR with TEGIMENT option5,000m
MSRP
OSAR-D (Original SAR with Date) Automatic 41mm$1,800
U50 HYDRO SDR with TEGIMENT option$3,110

Full specifications

Case

7 specs
Thickness
13mm
11.8mm
Lug-to-Lug
43.5mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
bead-blasted
Water Resistance
300m
5000m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Indices
Applied
Lume
None
Luminescent

Movement

4 specs
Caliber
Sellita SW220-1
Ronda 715 Li - SWISS MADE
Type
Automatic
Quartz
Jewels
25
5
Complications
None
Date

Pricing

1 specs
MSRP
$1,800
$3,110

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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 U50 HYDRO SDR with TEGIMENT option

The Sinn U50 HYDRO SDR with TEGIMENT option is widely praised for its exceptional scratch resistance and legibility, with owners reporting no signs of wear after extended use. The oil-filled case contributes to extreme water resistance and a clear dial, while the fully tegimented construction offers a soft feel on the wrist. Reviewers note the compact 41mm size, though one owner found it did not wear as thin as expected due to its thickness. The lume is considered underwhelming by some, and the diving extension on the clasp can release too easily. It utilizes a quartz movement, which is noted as less accurate than previous thermo-compensated options. Overall, owners and reviewers rate the Sinn U50 HYDRO SDR with TEGIMENT option highly for its robust, legible, and virtually indestructible build at its price point.

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