Which has better water resistance, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Grand Seiko STGF387?

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm is rated to 300m versus 100m for the Grand Seiko STGF387.

What movement does the Marathon OSAR-D (Original SAR with Date) Automatic 41mm run compared to the Grand Seiko STGF387?

The Marathon OSAR-D (Original SAR with Date) Automatic 41mm runs a automatic caliber (Sellita SW220-1), while the Grand Seiko STGF387 runs a quartz (4J51).

Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 41mmvsGrand Seiko STGF387

Q: Which is cheaper, the Marathon OSAR-D (Original SAR with Date) Automatic 41mm or the Grand Seiko STGF387?

At MSRP the Marathon OSAR-D (Original SAR with Date) Automatic 41mm is the cheaper of the two at $1,800, against $4,200 for the Grand Seiko STGF387 — a $2,400 gap before any retailer discounting.

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

Grand Seiko STGF387

stgf387g

MSRP $4,200

At a glance

11 of 29 specs differ

Diameter

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

STGF38726mm

Power Reserve

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

STGF38740h

Water Resistance

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

STGF387100m

MSRP

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

STGF387$4,200

Full specifications

Case

7 specs

Crystal & Dial

1 specs

AR Coating

Inner

Yes

Movement

2 specs

Caliber

Sellita SW220-1

4J51

Type

Automatic

Quartz

Pricing

1 specs

MSRP

$1,800

$4,200

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