Which is cheaper, the Serica Ref. 5330 Diving Chronometer Date or the Zelos Helmsman 3?

At MSRP the Zelos Helmsman 3 is the cheaper of the two at $529, against $2,005 for the Serica Ref. 5330 Diving Chronometer Date — a $1,476 gap before any retailer discounting.

Which is bigger, the Serica Ref. 5330 Diving Chronometer Date or the Zelos Helmsman 3?

The Zelos Helmsman 3 wears larger at 40mm versus 39mm for the Serica Ref. 5330 Diving Chronometer Date — a 1mm difference across the dial.

Which has better water resistance, the Serica Ref. 5330 Diving Chronometer Date or the Zelos Helmsman 3?

The Serica Ref. 5330 Diving Chronometer Date is rated to 300m versus 200m for the Zelos Helmsman 3.

Which has a longer power reserve, the Serica Ref. 5330 Diving Chronometer Date or the Zelos Helmsman 3?

The Serica Ref. 5330 Diving Chronometer Date carries a 42-hour power reserve against 40 hours on the Zelos Helmsman 3.

What movement does the Serica Ref. 5330 Diving Chronometer Date run compared to the Zelos Helmsman 3?

Both watches run automatic movements — the Serica Ref. 5330 Diving Chronometer Date uses the SoProd M100 and the Zelos Helmsman 3 uses the Miyota 9015.

Side by side

Serica Ref. 5330 Diving Chronometer DatevsZelos Helmsman 3

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

Serica Ref. 5330 Diving Chronometer Date

5330-chronometre-plongee-date

MSRP $2,005

Zelos Helmsman 3

helmsman-ss-frost

MSRP $529

At a glance

13 of 29 specs differ

Diameter

Ref. 5330 Diving Chronometer Date39mm

Helmsman 340mm

Power Reserve

Ref. 5330 Diving Chronometer Date42h

Helmsman 340h

Water Resistance

Ref. 5330 Diving Chronometer Date300m

Helmsman 3200m

MSRP

Ref. 5330 Diving Chronometer Date$2,005

Helmsman 3$529

Full specifications

Case

5 specs

Diameter

39mm

40mm

Thickness

12.2mm

11.5mm

Lug-to-Lug

46.5mm

40mm

Material

Stainless Steel

316L Stainless Steel

Water Resistance

300m

200m

Crystal & Dial

4 specs

Crystal

Sapphire

Domed Sapphire

AR Coating

Yes

Inner

Dial Color

Black

SS - Frost

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

SoProd M100

Miyota 9015

Power Reserve

42h

40h

Complications

COSC, Date

None

Pricing

1 specs

MSRP

$2,005

$529

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