Casio Duro MDV106 (Marlin) vs Seiko SKX007

Both are dive watches. In short: the Seiko SKX007 is mechanical (automatic) for the enthusiast feel and no battery; the Casio Duro MDV106 (Marlin) is quartz for accuracy and low maintenance. The Casio Duro MDV106 (Marlin) is quartz, 200m water resistance, 44mm, mineral crystal; the Seiko SKX007 is automatic, 200m water resistance, 42mm, hardlex crystal.

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

Spec	Casio Duro MDV106 (Marlin)	Seiko SKX007
Movement	Quartz	Automatic
Water resistance	200m	200m
Case size	44mm	42mm
Crystal	mineral	hardlex
Style	Dive	Dive
Price tier	Entry	Mid

Which should you buy?

The Seiko SKX007 is mechanical (automatic) for the enthusiast feel and no battery; the Casio Duro MDV106 (Marlin) is quartz for accuracy and low maintenance
The Casio Duro MDV106 (Marlin) sits in the lower price tier (Entry) if budget leads

Where to buy

Casio Duro MDV106 (Marlin)See price on AmazonCheck price

Seiko SKX007See price on AmazonCheck price

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FAQ

What's the difference between the Casio Duro MDV106 (Marlin) and the Seiko SKX007?
Both are dive watches. The Casio Duro MDV106 (Marlin) is quartz, 200m water resistance, 44mm, mineral crystal; the Seiko SKX007 is automatic, 200m water resistance, 42mm, hardlex crystal.

Which is better value, the Casio Duro MDV106 (Marlin) or the Seiko SKX007?
The Casio Duro MDV106 (Marlin) is the lower-priced tier; the other steps up in build for more money — confirm both live prices at the retailer.

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

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