Which is cheaper, the RZE Fortitude GMT or the Serket Watch Co Reef Mariana?

At MSRP the Serket Watch Co Reef Mariana is the cheaper of the two at $449, against $719 for the RZE Fortitude GMT — a $270 gap before any retailer discounting.

Which is bigger, the RZE Fortitude GMT or the Serket Watch Co Reef Mariana?

The RZE Fortitude GMT wears larger at 41mm versus 40mm for the Serket Watch Co Reef Mariana — a 1mm difference across the dial.

What movement does the RZE Fortitude GMT run compared to the Serket Watch Co Reef Mariana?

The RZE Fortitude GMT runs a automatic gmt caliber (Miyota 9075), while the Serket Watch Co Reef Mariana runs a automatic (Seiko NH35).

Side by side

RZE Fortitude GMTvsSerket Watch Co Reef Mariana

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

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RZE Fortitude GMT

RZE-FOR

MSRP $719

Serket Watch Co Reef Mariana

reef-x-mariana-diver-orange-dial-black-bezel-40mm-pre-order

MSRP $449

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Buy used on eBay ↗

Buy from Serket Watch Co ↗

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At a glance

12 of 29 specs differ

Diameter

Fortitude GMT41mm

Reef Mariana40mm

Power Reserve

Fortitude GMT40h

Reef Mariana—

Water Resistance

Fortitude GMT200m

Reef Mariana200m

MSRP

Fortitude GMT$719

Reef Mariana$449

Full specifications

Case

5 specs

Crystal & Dial

3 specs

AR Coating

Underside

Inner

Dial Color

Red

Orange

Lume

Super-LumiNova BGW9

BGW9

Movement

3 specs

Caliber

Miyota 9075

Seiko NH35

Power Reserve

40h

—

Complications

GMT

None

Pricing

1 specs

MSRP

$719

$449

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RZE Fortitude GMTvsSerket Watch Co Reef Mariana

At a glance

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