Which has better water resistance, the Marathon OSAR-D (Original SAR with Date) Automatic 36mm or the Grand Seiko SBGW306?

The Marathon OSAR-D (Original SAR with Date) Automatic 36mm is rated to 300m versus 100m for the Grand Seiko SBGW306.

Which has a longer power reserve, the Marathon OSAR-D (Original SAR with Date) Automatic 36mm or the Grand Seiko SBGW306?

The Grand Seiko SBGW306 carries a 72-hour power reserve against 40 hours on the Marathon OSAR-D (Original SAR with Date) Automatic 36mm.

What movement does the Marathon OSAR-D (Original SAR with Date) Automatic 36mm run compared to the Grand Seiko SBGW306?

The Marathon OSAR-D (Original SAR with Date) Automatic 36mm runs a automatic caliber (Sellita SW220-1), while the Grand Seiko SBGW306 runs a manual (9S64).

Side by side

Marathon OSAR-D (Original SAR with Date) Automatic 36mmvsGrand Seiko SBGW306

Q: Which is cheaper, the Marathon OSAR-D (Original SAR with Date) Automatic 36mm or the Grand Seiko SBGW306?

At MSRP the Marathon OSAR-D (Original SAR with Date) Automatic 36mm is the cheaper of the two at $1,200, against $17,900 for the Grand Seiko SBGW306 — a $16,700 gap before any retailer discounting.

Q: Which is bigger, the Marathon OSAR-D (Original SAR with Date) Automatic 36mm or the Grand Seiko SBGW306?

The Grand Seiko SBGW306 wears larger at 36.5mm versus 36mm for the Marathon OSAR-D (Original SAR with Date) Automatic 36mm — a 0.5mm difference across the dial.

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

Marathon OSAR-D (Original SAR with Date) Automatic 36mm

36mm-original-sar-w-date-osar-d

MSRP $1,200

Grand Seiko SBGW306

sbgw306j

MSRP $17,900

At a glance

11 of 29 specs differ

Diameter

OSAR-D (Original SAR with Date) Automatic 36mm36mm

SBGW30636.5mm

Power Reserve

OSAR-D (Original SAR with Date) Automatic 36mm40h

SBGW30672h

Water Resistance

OSAR-D (Original SAR with Date) Automatic 36mm300m

SBGW306100m

MSRP

OSAR-D (Original SAR with Date) Automatic 36mm$1,200

SBGW306$17,900

Full specifications

Case

6 specs

Crystal & Dial

1 specs

AR Coating

Inner

Yes

Movement

3 specs

Caliber

Sellita SW220-1

9S64

Type

Automatic

Manual

Power Reserve

40h

72h

Pricing

1 specs

MSRP

$1,200

$17,900

Follow this matchup

Get a note when Marathon OSAR-D (Original SAR with Date) Automatic 36mm vs Grand Seiko SBGW306 gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring