Which is cheaper, the Maen Manhattan 37 IFL Edition or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

At MSRP the Maen Manhattan 37 IFL Edition is the cheaper of the two at $1,199, against $1,400 for the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition — a $201 gap before any retailer discounting.

Which is bigger, the Maen Manhattan 37 IFL Edition or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

The Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition wears larger at 40mm versus 37mm for the Maen Manhattan 37 IFL Edition — a 3mm difference across the dial.

Which has better water resistance, the Maen Manhattan 37 IFL Edition or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

The Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition is rated to 300m versus 100m for the Maen Manhattan 37 IFL Edition.

Which has a longer power reserve, the Maen Manhattan 37 IFL Edition or the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

The Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition carries a 72-hour power reserve against 40 hours on the Maen Manhattan 37 IFL Edition.

What movement does the Maen Manhattan 37 IFL Edition run compared to the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition?

Both watches run automatic movements — the Maen Manhattan 37 IFL Edition uses the Sellita SW200-1 and the Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition uses the 6R55.

Side by side

Maen Manhattan 37 IFL EditionvsSeiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

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

Maen Manhattan 37 IFL Edition

manhattan-37-ifl-01

MSRP $1,199

Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

spb545j1

MSRP $1,400

At a glance

15 of 29 specs differ

Diameter

Manhattan 37 IFL Edition37mm

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition40mm

Power Reserve

Manhattan 37 IFL Edition40h

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition72h

Water Resistance

Manhattan 37 IFL Edition100m

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition300m

MSRP

Manhattan 37 IFL Edition$1,199

Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition$1,400

Full specifications

Case

7 specs

Crystal & Dial

4 specs

Crystal Shape

Flat

Curved

AR Coating

Inner

Anti-reflective coating on inner surface

Dial Color

IFL.01

Black

Lume

None

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Sellita SW200-1

6R55

Power Reserve

40h

72h

Jewels

Pricing

1 specs

MSRP

$1,199

$1,400

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Maen Manhattan 37 IFL Edition

Maen Manhattan is praised for its value at $1,499, featuring a slim 9.3mm case, 100m water resistance, and a comfortable integrated bracelet. Owners highlight its simple design and automatic movement.

From video reviewers

The hand-painted dial is a standout feature. The lume brightness is not particularly bright. Reviewers disagree on the value proposition at the $1,499 price point.

Fratello

Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

The Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition is praised for its compact 40mm case and the new Caliber 6R55 movement offering a 72-hour power reserve. Owners and reviewers highlight the stunning dials as a strong suit for Seiko. However, the 6R movement's accuracy is a point of disappointment for some, who wish for improvements closer to other movements, though others accept it given the excellent overall package. Press images suggest the bracelet end links may appear disjointed. Overall, owners and reviewers rate the Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition well, with the stunning dials and improved power reserve being the biggest reasons.

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