Side by side

Feynman Timekeepers CovevsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch

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

What people say

Owners + reviewers, side by side

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

Feynman Timekeepers Cove

Owners widely praise the Feynman Timekeepers Cove for its original and versatile design. One owner highlights the lume as a key appeal. One owner found the Feynman Cove outside their price range. Overall, owners rate the Feynman Timekeepers Cove highly for its original and versatile design.

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.

At a glance

11 of 29 specs differ
Diameter
Cove40mm
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
Power Reserve
Cove50h
Prospex Sea 1968 Heritage Diver's GMT Watch72h
Water Resistance
Cove200m
Prospex Sea 1968 Heritage Diver's GMT Watch300m
MSRP
Cove$1,045
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700

Full specifications

Case

5 specs
Category
Diver
Diameter
40mm
42mm
Thickness
12.8mm
13.3mm
Lug-to-Lug
46mm
48.6mm
Water Resistance
200m
300m

Crystal & Dial

2 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
C3 X1-grade Swiss SuperLuminova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
ETA 2895-2
6R54
Power Reserve
50h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$1,045
$1,700
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