Which is cheaper, the Helgray Poseidon Diver (Automatic) or the Yema Navygraf Marine Nationale CMM.10?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $1,614 for the Yema Navygraf Marine Nationale CMM.10 — a $1,365 gap before any retailer discounting.

Which is bigger, the Helgray Poseidon Diver (Automatic) or the Yema Navygraf Marine Nationale CMM.10?

The Helgray Poseidon Diver (Automatic) wears larger at 40mm versus 39mm for the Yema Navygraf Marine Nationale CMM.10 — a 1mm difference across the dial.

Which has better water resistance, the Helgray Poseidon Diver (Automatic) or the Yema Navygraf Marine Nationale CMM.10?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 100m for the Yema Navygraf Marine Nationale CMM.10.

What movement does the Helgray Poseidon Diver (Automatic) run compared to the Yema Navygraf Marine Nationale CMM.10?

Both watches run automatic movements — the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty and the Yema Navygraf Marine Nationale CMM.10 uses the Yema CMM.10.

Side by side

Helgray Poseidon Diver (Automatic)vsYema Navygraf Marine Nationale CMM.10

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

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

Yema Navygraf Marine Nationale CMM.10

yema-navygraf-marine-nationale-cmm-10-21-14-55-sn-m

MSRP $1,614

At a glance

8 of 29 specs differ

Diameter

Poseidon Diver (Automatic)40mm

Navygraf Marine Nationale CMM.1039mm

Power Reserve

Poseidon Diver (Automatic)40h

Navygraf Marine Nationale CMM.1040h

Water Resistance

Poseidon Diver (Automatic)300m

Navygraf Marine Nationale CMM.10100m

MSRP

Poseidon Diver (Automatic)$249

Navygraf Marine Nationale CMM.10$1,614

Full specifications

Case

5 specs

Diameter

40mm

39mm

Thickness

12mm

11mm

Lug Width

20mm

19mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

300m

100m

Crystal & Dial

1 specs

Crystal

Sapphire

Domed Sapphire

Movement

1 specs

Caliber

NH35 Warranty

Yema CMM.10

Pricing

1 specs

MSRP

$249

$1,614

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