Which is cheaper, the Borealis Watch Co. Caloura 300m or the Sugess Ocean Star S421?

At MSRP the Borealis Watch Co. Caloura 300m is the cheaper of the two at $275, against $449 for the Sugess Ocean Star S421 — a $174 gap before any retailer discounting.

Which is bigger, the Borealis Watch Co. Caloura 300m or the Sugess Ocean Star S421?

The Borealis Watch Co. Caloura 300m wears larger at 42mm versus 40mm for the Sugess Ocean Star S421 — a 2mm difference across the dial.

What movement does the Borealis Watch Co. Caloura 300m run compared to the Sugess Ocean Star S421?

Both watches run automatic movements — the Borealis Watch Co. Caloura 300m uses the NH35 and the Sugess Ocean Star S421 uses the Seagull ST2130/Seiko NH35.

Side by side

Borealis Watch Co. Caloura 300mvsSugess Ocean Star S421

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

Borealis Watch Co.Caloura 300m

borealis-caloura-diver-watch

MSRP $275

Sugess Ocean Star S421

S421

MSRP $449

At a glance

10 of 29 specs differ

Diameter

Caloura 300m42mm

Ocean Star S42140mm

Power Reserve

Caloura 300m40h

Ocean Star S42140h

Water Resistance

Caloura 300m300m

Ocean Star S421300m

MSRP

Caloura 300m$275

Ocean Star S421$449

Full specifications

Case

4 specs

Diameter

42mm

40mm

Thickness

13.9mm

12.7mm

Lug-to-Lug

44.20mm

46mm

Lug Width

22mm

20mm

Crystal & Dial

2 specs

Dial Color

Black

SU116610LB Black

Lume

BGW9

None

Movement

3 specs

Caliber

NH35

Seagull ST2130/Seiko NH35

Beat Rate

28,800 vph

4 vph

Complications

None

GMT, Chronograph, Moonphase, Date

Pricing

1 specs

MSRP

$275

$449

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