Which is cheaper, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Seiko Diamond Collection?

At MSRP the Seiko Diamond Collection is the cheaper of the two at $525, against $1,800 for the Marathon OSAR-D (Original SAR with Date) Automatic 41mm — a $1,275 gap before any retailer discounting.

Which is bigger, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Seiko Diamond Collection?

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm wears larger at 41mm versus 32mm for the Seiko Diamond Collection — a 9mm difference across the dial.

What movement does the Marathon OSAR-D (Original SAR with Date) Automatic 41mm run compared to the Seiko Diamond Collection?

Both watches run automatic movements — the Marathon OSAR-D (Original SAR with Date) Automatic 41mm uses the Sellita SW220-1 and the Seiko Diamond Collection uses the 6N32.

Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsSeiko Diamond Collection

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

Marathon OSAR-D (Original SAR with Date) Automatic 41mm

41mm-original-sar-w-date-osar-d

MSRP $1,800

Seiko Diamond Collection

sur579

MSRP $525

At a glance

9 of 29 specs differ

Diameter

OSAR-D (Original SAR with Date) Automatic 41mm41mm

Diamond Collection32mm

Power Reserve

OSAR-D (Original SAR with Date) Automatic 41mm40h

Diamond Collection40h

Water Resistance

OSAR-D (Original SAR with Date) Automatic 41mm300m

Diamond Collection100m

MSRP

OSAR-D (Original SAR with Date) Automatic 41mm$1,800

Diamond Collection$525

Full specifications

Case

7 specs

Movement

1 specs

Caliber

Sellita SW220-1

6N32

Pricing

1 specs

MSRP

$1,800

$525

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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.

Fratello

A Blog to Watch

Seiko Diamond Collection

Owners widely praise the Seiko Diamond Collection for its stunning beauty, particularly highlighting the 14 diamonds and the captivating mother-of-pearl dial. Its 33.2mm case size, 100m water resistance, sapphire crystal, and lightweight build are appreciated features contributing to comfortable wear. Some owners find the dial detail is best appreciated in direct sunlight. The gold plating on some models may show fading from desk work over time. Overall, owners rate the Seiko Diamond Collection highly for its dazzling aesthetics and comfortable, well-finished design at its price point.

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