WatchSpecDBwatches, by spec

Marathon TSAR vs Marathon GSAR

Both are dive watches in the upper tier. In short: the Marathon GSAR is mechanical (automatic) for the enthusiast feel and no battery; the Marathon TSAR is quartz for accuracy and low maintenance. The Marathon TSAR is quartz, 300m water resistance, 41mm, sapphire crystal; the Marathon GSAR is automatic, 300m water resistance, 41mm, sapphire crystal.

Last verified 2026-06-27 · specs from manufacturer data · tier = price band, confirm the live price at the retailer

SpecMarathon TSARMarathon GSAR
MovementQuartzAutomatic
Water resistance300m300m
Case size41mm41mm
Crystalsapphiresapphire
StyleDiveDive
Price tierUpperUpper

Which should you buy?

The Marathon GSAR is mechanical (automatic) for the enthusiast feel and no battery; the Marathon TSAR is quartz for accuracy and low maintenance.

Where to buy

Marathon TSARSee price on AmazonCheck price

Marathon GSARSee price on AmazonCheck price

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Affiliate links never affect our specs or which watches we compare.

Ordering a watch? Amazon Prime includes fast delivery on eligible items, and eligible new members may be offered a free trial. Delivery speed and return terms vary by item, so check the listing when sizing is a gamble. See if you can try Prime free →

Affiliate link — we may earn a commission on qualifying sign-ups, at no extra cost to you. Current terms are on Amazon's page.

FAQ

What's the difference between the Marathon TSAR and the Marathon GSAR?
Both are dive watches in the upper tier. The Marathon TSAR is quartz, 300m water resistance, 41mm, sapphire crystal; the Marathon GSAR is automatic, 300m water resistance, 41mm, sapphire crystal.

Which is better value, the Marathon TSAR or the Marathon GSAR?
Both sit in the upper tier, so it comes down to movement, water resistance and case size — see the spec table above.

Citing these specs? Go ahead — manufacturer data, last verified 2026-06-27. Copy a ready-made reference:

More dive comparisons: Casio Duro MDV106 (Marlin) vs Orient Ray II · Seiko Prospex Turtle SRPE vs Seiko Prospex Solar Tuna SNE575 · Christopher Ward C60 Trident vs Marathon TSAR · Seiko Prospex Sumo SPB103 vs Casio G-Shock Frogman GWF-A1000 · dive watches under ~$1,500 · all dive watches · all comparisons