Which is bigger, the Seiko Prospex Sea 1968 Heritage Diver's GMT or the Typsim x Seconde Seconde 200M Collaboration?

The Seiko Prospex Sea 1968 Heritage Diver's GMT wears larger at 42mm versus 39mm for the Typsim x Seconde Seconde 200M Collaboration — a 3mm difference across the dial.

Which has a longer power reserve, the Seiko Prospex Sea 1968 Heritage Diver's GMT or the Typsim x Seconde Seconde 200M Collaboration?

The Seiko Prospex Sea 1968 Heritage Diver's GMT carries a 72-hour power reserve against 40 hours on the Typsim x Seconde Seconde 200M Collaboration.

What movement does the Seiko Prospex Sea 1968 Heritage Diver's GMT run compared to the Typsim x Seconde Seconde 200M Collaboration?

Both watches run automatic movements — the Seiko Prospex Sea 1968 Heritage Diver's GMT uses the 6R54 and the Typsim x Seconde Seconde 200M Collaboration uses the Sellita SW300-1.

Side by side

Seiko Prospex Sea 1968 Heritage Diver's GMTvsTypsim Typsim x Seconde Seconde 200M Collaboration

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

Add a watch

Seiko Prospex Sea 1968 Heritage Diver's GMT

spb381j1

MSRP $1,500

Typsim Typsim x Seconde Seconde 200M Collaboration

200mxsecondeseconde

MSRP $1,500

At a glance

12 of 29 specs differ

Diameter

Prospex Sea 1968 Heritage Diver's GMT42mm

Typsim x Seconde Seconde 200M Collaboration39mm

Power Reserve

Prospex Sea 1968 Heritage Diver's GMT72h

Typsim x Seconde Seconde 200M Collaboration40h

Water Resistance

Prospex Sea 1968 Heritage Diver's GMT200m

Typsim x Seconde Seconde 200M Collaboration200m

MSRP

Prospex Sea 1968 Heritage Diver's GMT$1,500

Typsim x Seconde Seconde 200M Collaboration$1,500

Full specifications

Case

5 specs

Crystal & Dial

4 specs

Crystal

Sapphire

Acrylic

AR Coating

Anti-reflective coating on inner surface

Inner

Dial Color

Black

Silver Gilt

Lume

LumiBrite on hands, index(es) and bezel

None

Movement

3 specs

Caliber

6R54

Sellita SW300-1

Power Reserve

72h

40h

Jewels

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