Which is cheaper, the Tornek-Rayville CISO M38 MAC V SOG or the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

At MSRP the Tornek-Rayville CISO M38 MAC V SOG is the cheaper of the two at $745, against $3,300 for the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition — a $2,555 gap before any retailer discounting.

Which is bigger, the Tornek-Rayville CISO M38 MAC V SOG or the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition 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 Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition is rated to 200m 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 Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

The Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition carries a 50-hour power reserve against 42 hours on the Tornek-Rayville CISO M38 MAC V SOG.

What movement does the Tornek-Rayville CISO M38 MAC V SOG run compared to the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition?

Both watches run automatic movements — the Tornek-Rayville CISO M38 MAC V SOG uses the TMI NH36 and the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition uses the 8L35.

Side by side

Tornek-Rayville CISO M38 MAC V SOGvsSeiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

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

Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

sla061j1

MSRP $3,300

At a glance

12 of 29 specs differ

Diameter

CISO M38 MAC V SOG38mm

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm

Power Reserve

CISO M38 MAC V SOG42h

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h

Water Resistance

CISO M38 MAC V SOG100m

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m

MSRP

CISO M38 MAC V SOG$745

Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300

Full specifications

Case

5 specs

Crystal & Dial

3 specs

Crystal Shape

Flat

Curved

AR Coating

Yes

Anti-reflective coating on inner surface

Lume

Superluminova

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

TMI NH36

8L35

Power Reserve

42h

50h

Jewels

Pricing

1 specs

MSRP

$745

$3,300

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