Which is cheaper, the Helgray Poseidon Diver (Automatic) or the Longines ULTRA‑CHRON CARBON?

At MSRP the Helgray Poseidon Diver (Automatic) is the cheaper of the two at $249, against $5,550 for the Longines ULTRA‑CHRON CARBON — a $5,301 gap before any retailer discounting.

Which is bigger, the Helgray Poseidon Diver (Automatic) or the Longines ULTRA‑CHRON CARBON?

The Longines ULTRA‑CHRON CARBON wears larger at 43mm versus 40mm for the Helgray Poseidon Diver (Automatic) — a 3mm difference across the dial.

Which has a longer power reserve, the Helgray Poseidon Diver (Automatic) or the Longines ULTRA‑CHRON CARBON?

The Longines ULTRA‑CHRON CARBON carries a 52-hour power reserve against 40 hours on the Helgray Poseidon Diver (Automatic).

What movement does the Helgray Poseidon Diver (Automatic) run compared to the Longines ULTRA‑CHRON CARBON?

Both watches run automatic movements — the Helgray Poseidon Diver (Automatic) uses the NH35 Warranty and the Longines ULTRA‑CHRON CARBON uses the L836.6.

Side by side

Helgray Poseidon Diver (Automatic)vsLongines ULTRA‑CHRON CARBON

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

Longines ULTRA‑CHRON CARBON

L2.839.4.52.2

MSRP $5,550

At a glance

20 of 29 specs differ

Diameter

Poseidon Diver (Automatic)40mm

ULTRA‑CHRON CARBON43mm

Power Reserve

Poseidon Diver (Automatic)40h

ULTRA‑CHRON CARBON52h

Water Resistance

Poseidon Diver (Automatic)300m

ULTRA‑CHRON CARBON300m

MSRP

Poseidon Diver (Automatic)$249

ULTRA‑CHRON CARBON$5,550

Full specifications

Case

7 specs

Diameter

40mm

43mm

Thickness

12mm

14mm

Lug-to-Lug

46mm

48.9mm

Lug Width

20mm

22mm

Material

Stainless Steel

Titanium

Finish

Brushed and polished

—

Caseback

Solid

Screw-down case back

Crystal & Dial

5 specs

Crystal Shape

Flat

—

AR Coating

Inner

Both sides

Dial Color

Black

Silver

Indices

Applied

Applied indexes

Lume

None

Super-LumiNova

Movement

7 specs

Caliber

NH35 Warranty

L836.6

Beat Rate

28,800 vph

36,000 vph

Power Reserve

40h

52h

Jewels

Hacking

Yes

Hand-winding

Yes

Complications

None

Hours, minutes, seconds

Pricing

1 specs

MSRP

$249

$5,550

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