Wrist size visualizer
Case diameter and lug-to-lug drawn to scale (4px per mm) against a millimeter ruler — hold a ruler or tape measure up to the screen to compare.
mm circumference
Lug-to-lug (49.3mm) is approximately 91% of your estimated flat wrist width (54mm). Well-proportioned for your wrist.
Fit and value
- How it wears
- Large · 42.6 mm case, 49.3 mm lug-to-lug
- In the water
- Recreational diving · 300 m
- Price position
- Priced above 41% of watches in our catalogue
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Seiko
Prospex Marine Master
Dive
$3,600
A professional saturation diver's watch rated for helium-rich mixed-gas diving environments.
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- 42.6 × 14.1 mm
- Automatic
- 300 m water resistance
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Frequently asked questions
How much does the Seiko Prospex Marine Master cost?
The Seiko Prospex Marine Master has a listed retail price of about $3,600. Street and pre-owned prices may differ.
How water resistant is the Seiko Prospex Marine Master?
It is rated to 300 m of water resistance.
What movement does the Seiko Prospex Marine Master use?
It uses a automatic movement with a power reserve of about 72 hours.
How big is the Seiko Prospex Marine Master?
The case is 42.6 mm in diameter.
When was the Seiko Prospex Marine Master released?
It was released in 2024.