Side by side

Seiko Prospex Sea 1968 Heritage Diver's GMT WatchvsYema Diver

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

Diver
YemaDiver
MSRP $990

At a glance

11 of 29 specs differ
Diameter
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
Diver39.5mm
Power Reserve
Prospex Sea 1968 Heritage Diver's GMT Watch72h
Diver40h
Water Resistance
Prospex Sea 1968 Heritage Diver's GMT Watch300m
Diver200m
MSRP
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700
Diver$990

Full specifications

Case

5 specs
Diameter
42mm
39.5mm
Thickness
13.3mm
10.95mm
Lug-to-Lug
48.6mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
6R54
Sellita SW200
Power Reserve
72h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$1,700
$990

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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.

Seiko Prospex Sea 1968 Heritage Diver's GMT Watch

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch offers a 300-meter depth rating and a caller-style GMT complication powered by the Caliber 6R54 movement, which provides a 72-hour power reserve. Reviewers note its refined clasp with extensive micro-adjustment. However, the movement's accuracy, ranging from +25 to -15 seconds per day, is considered a drawback by some. Overall, reviewers highlight the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch as a good reminder of Seiko's value, despite the wide accuracy range of its movement.

Yema Diver

One owner reported a water ingress issue on their Yema Diver the first time it got wet in a lake, despite rinsing and inspecting the watch and bezel. Another owner notes this manual wind Yema Diver has a cool patina but is unlikely to be waterproof or gain value. Overall, owners view the Yema Diver as a fun second watch rather than an investment.

From video reviewers

The Swiss Sellita movement is a notable feature. Reviewers did not reach a consensus on any weaknesses.

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