Which is cheaper, the Tornek-Rayville CISO M38 MAC V SOG or the Spinnaker Dumas GMT?

At MSRP the Spinnaker Dumas GMT is the cheaper of the two at $399, against $745 for the Tornek-Rayville CISO M38 MAC V SOG — a $346 gap before any retailer discounting.

Which is bigger, the Tornek-Rayville CISO M38 MAC V SOG or the Spinnaker Dumas GMT?

The Spinnaker Dumas GMT wears larger at 44mm versus 38mm for the Tornek-Rayville CISO M38 MAC V SOG — a 6mm difference across the dial.

Which has better water resistance, the Tornek-Rayville CISO M38 MAC V SOG or the Spinnaker Dumas GMT?

The Spinnaker Dumas GMT is rated to 300m versus 100m for the Tornek-Rayville CISO M38 MAC V SOG.

Which has a longer power reserve, the Tornek-Rayville CISO M38 MAC V SOG or the Spinnaker Dumas GMT?

The Tornek-Rayville CISO M38 MAC V SOG carries a 42-hour power reserve against 40 hours on the Spinnaker Dumas GMT.

What movement does the Tornek-Rayville CISO M38 MAC V SOG run compared to the Spinnaker Dumas GMT?

Both watches run automatic movements — the Tornek-Rayville CISO M38 MAC V SOG uses the TMI NH36 and the Spinnaker Dumas GMT uses the Seiko NH34A.

Side by side

Tornek-Rayville CISO M38 MAC V SOGvsSpinnaker Dumas GMT

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

Tornek-Rayville CISO M38 MAC V SOG

ciso-m38-mac-v-sog

MSRP $745

Spinnaker Dumas GMT

dumas-gmt-automatic-ocean-blue-sp-5119-55

MSRP $399

At a glance

13 of 29 specs differ

Diameter

CISO M38 MAC V SOG38mm

Dumas GMT44mm

Power Reserve

CISO M38 MAC V SOG42h

Dumas GMT40h

Water Resistance

CISO M38 MAC V SOG100m

Dumas GMT300m

MSRP

CISO M38 MAC V SOG$745

Dumas GMT$399

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Black

Blue

Lume

Superluminova

None

Movement

2 specs

Caliber

TMI NH36

Seiko NH34A

Power Reserve

42h

40h

Pricing

1 specs

MSRP

$745

$399

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