Side by side

Feynman Timekeepers CovevsSeiko King Turtle

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 King Turtle

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many appreciating its faithful recreation of classic designs and proven movements like the 4R36 and 6R15. Reviewers highlight impressive case finishing and durability, noting that even larger models wear smaller than expected due to thoughtful case design. Some owners find the solar quartz models a great entry point, appreciating their design and solar functionality. However, specific variants receive critiques: the bracelet clasp on the Samurai is described as underwhelming, and the Sumo's bracelet width and clasp are seen as too narrow and rudimentary, respectively. The SPB183 is considered expensive for a Japanese watch, and its lume is noted as not quite matching older Seiko Monster models. The GMT function on the SPB519 is deemed less practical for serious travel, and its bezel clicks are described as quieter and mushier.

At a glance

12 of 29 specs differ
Diameter
Cove40mm
King Turtle45mm
Power Reserve
Cove50h
King Turtle41h
Water Resistance
Cove200m
King Turtle200m
MSRP
Cove$1,045
King Turtle$650

Full specifications

Case

5 specs
Category
Diver
Diameter
40mm
45mm
Thickness
12.8mm
13.2mm
Lug-to-Lug
46mm
47.7mm
Lug Width
20mm
22mm

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Dial Color
Black
Lume
C3 X1-grade Swiss SuperLuminova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
ETA 2895-2
4R36
Power Reserve
50h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$1,045
$650
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