Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 36mmvsGrand Seiko SLGA015

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

OSAR-D (Original SAR with Date) Automatic 36mm
MarathonOSAR-D (Original SAR with Date) Automatic 36mm
MSRP $1,200
SLGA015
Grand SeikoSLGA015
MSRP $12,600

At a glance

11 of 29 specs differ
Diameter
OSAR-D (Original SAR with Date) Automatic 36mm36mm
SLGA01543.8mm
Power Reserve
OSAR-D (Original SAR with Date) Automatic 36mm40h
SLGA015120h
Water Resistance
OSAR-D (Original SAR with Date) Automatic 36mm300m
SLGA015200m
MSRP
OSAR-D (Original SAR with Date) Automatic 36mm$1,200
SLGA015$12,600

Full specifications

Case

6 specs
Diameter
36mm
43.8mm
Thickness
13mm
13.8mm
Lug-to-Lug
43.5mm
51.5mm
Lug Width
18mm
23mm
Material
316L Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

3 specs
Caliber
Sellita SW220-1
9RA5
Type
Automatic
Spring Drive
Power Reserve
40h
120h

Pricing

1 specs
MSRP
$1,200
$12,600

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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 36mm

Owners widely praise the Marathon OSAR-D (Original SAR with Date) Automatic 36mm for its exceptional legibility, featuring large hour markers and MaraGlo lume. The watch is noted for its comfortable wearability and competent Swiss-made Selitta SW200-1 automatic movement, offering 300-meter water resistance and a sapphire crystal. Some enthusiasts find the price of $1,380 USD on rubber to be excessive, particularly compared to past models or other brands, and the Spartan bracelet is described as lacking refinement. On balance, owners and reviewers find the Marathon OSAR-D Automatic 36mm a reliable and functional tool watch, with its clear dial and robust build being the primary draws.

Grand Seiko SLGA015

The Grand Seiko SLGA015 is widely praised for its exceptional accuracy, with owners reporting performance far exceeding the stated 10 seconds per month. The Spring Drive movement's smooth sweep and 5-day power reserve are also noted strengths, as is the lighter titanium case construction. However, some owners find the bracelet extension non-intuitive, and one noted the clasp scratched easily. The watch features a nature-inspired, wave-like dial texture. Overall, owners rate the Grand Seiko SLGA015 highly for its impressive accuracy and quality construction.

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