Which is bigger, the Marathon MSAR (Medium Search & Rescue) Diver's Quartz or the Grand Seiko SBGX355?

The Grand Seiko SBGX355 wears larger at 37mm versus 36mm for the Marathon MSAR (Medium Search & Rescue) Diver's Quartz — a 1mm difference across the dial.

What movement does the Marathon MSAR (Medium Search & Rescue) Diver's Quartz run compared to the Grand Seiko SBGX355?

Both watches run quartz movements — the Marathon MSAR (Medium Search & Rescue) Diver's Quartz uses the Swiss High-Torque Quartz and the Grand Seiko SBGX355 uses the 9F62.

Side by side

Marathon MSAR (Medium Search & Rescue) Diver's QuartzvsGrand Seiko SBGX355

Q: Which is cheaper, the Marathon MSAR (Medium Search & Rescue) Diver's Quartz or the Grand Seiko SBGX355?

At MSRP the Marathon MSAR (Medium Search & Rescue) Diver's Quartz is the cheaper of the two at $1,450, against $4,100 for the Grand Seiko SBGX355 — a $2,650 gap before any retailer discounting.

Q: Which has better water resistance, the Marathon MSAR (Medium Search & Rescue) Diver's Quartz or the Grand Seiko SBGX355?

The Marathon MSAR (Medium Search & Rescue) Diver's Quartz is rated to 300m versus 100m for the Grand Seiko SBGX355.

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

Marathon MSAR (Medium Search & Rescue) Diver's Quartz

medium-divers-quartz-msar-quartz-with-stainless-steel-bracelet-36mm

MSRP $1,450

Grand Seiko SBGX355

sbgx355g

MSRP $4,100

At a glance

10 of 29 specs differ

Diameter

MSAR (Medium Search & Rescue) Diver's Quartz36mm

SBGX35537mm

Power Reserve

MSAR (Medium Search & Rescue) Diver's Quartz40h

SBGX35540h

Water Resistance

MSAR (Medium Search & Rescue) Diver's Quartz300m

SBGX355100m

MSRP

MSAR (Medium Search & Rescue) Diver's Quartz$1,450

SBGX355$4,100

Full specifications

Case

7 specs

Crystal & Dial

1 specs

AR Coating

Inner

Yes

Movement

1 specs

Caliber

Swiss High-Torque Quartz

9F62

Pricing

1 specs

MSRP

$1,450

$4,100

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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 MSAR (Medium Search & Rescue) Diver's Quartz

Owners widely praise the Marathon MSAR (Medium Search & Rescue) Diver's Quartz for its tool-like aesthetic, bright tritium lume, and satisfying bezel action, making it enjoyable to handle and use. One owner finds the 36mm case comfortable after an initial adjustment period, while another reports accuracy within a few seconds of atomic time. On balance, owners rate the Marathon MSAR (Medium Search & Rescue) Diver's Quartz highly for its superb value and enjoyable tool-watch characteristics.

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WatchUSeek

Grand Seiko SBGX355

The Grand Seiko SBGX355 is widely praised for its beautiful dial, excellent finishing, and perfect 37mm size. Owners report unparalleled accuracy from the 9F62 quartz movement, rated to within 10 seconds per year. The high-intensity titanium case and 100m water resistance are noted features. Some consider the SBGX355 a "baby Snowflake" and a more accessible alternative to other models. Overall, owners and reviewers rate the Grand Seiko SBGX355 highly for its iconic Snowflake dial and exceptional quartz accuracy in a wearable 37mm case.

From video reviewers

The titanium case finishing is a significant strength. The deployant clasp is noted as prone to rattle. Reviewers disagree on the ideal case size for everyday wear.

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