Which is cheaper, the Phoibos Reef Master or the Helgray Poseidon Diver (Automatic)?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $335 for the Phoibos Reef Master — a $86 gap before any retailer discounting.

Which is bigger, the Phoibos Reef Master or the Helgray Poseidon Diver (Automatic)?

The Phoibos Reef Master wears larger at 42mm versus 40mm for the Helgray Poseidon Diver (Automatic) — a 2mm difference across the dial.

Which has better water resistance, the Phoibos Reef Master or the Helgray Poseidon Diver (Automatic)?

The Helgray Poseidon Diver (Automatic) is rated to 300m versus 200m for the Phoibos Reef Master.

What movement does the Phoibos Reef Master run compared to the Helgray Poseidon Diver (Automatic)?

Both watches run automatic movements — the Phoibos Reef Master uses the SII NH38 and the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty.

Side by side

Phoibos Reef MastervsHelgray Poseidon Diver (Automatic)

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

Phoibos Reef Master

phoibos-reef-master-200m-automatic-diver-watch-py047a-shamrock-green

MSRP $335

Helgray Poseidon Diver (Automatic)

poseidon-diver-automatic

MSRP $249

At a glance

10 of 29 specs differ

Diameter

Reef Master42mm

Poseidon Diver (Automatic)40mm

Power Reserve

Reef Master40h

Poseidon Diver (Automatic)40h

Water Resistance

Reef Master200m

Poseidon Diver (Automatic)300m

MSRP

Reef Master$335

Poseidon Diver (Automatic)$249

Full specifications

Case

5 specs

Diameter

42mm

40mm

Thickness

13mm

12mm

Lug-to-Lug

48mm

46mm

Lug Width

22mm

20mm

Water Resistance

200m

300m

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Green

Black

Lume

Super-LumiNova

None

Movement

1 specs

Caliber

SII NH38

NH35 Warranty

Pricing

1 specs

MSRP

$335

$249

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