Side by side

Seiko King TurtlevsLongines HydroConquest 43mm

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.

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.

Longines HydroConquest 43mm

Owners widely praise the Longines HydroConquest 43mm for its flashy design, refined case proportions, and tactile bezel clicks, with many finding it a beautiful watch that offers great value. Accuracy is noted as near chronometer specifications, with one owner reporting it losing only 2 seconds per day. However, some find the bezel scratchy, strap changes difficult, and the crown guard uncomfortable. The standard bracelet is criticized for its lack of taper and tool-less micro-adjustment, with some owners preferring aftermarket options for improved wearability. On balance, owners rate the Longines HydroConquest 43mm highly for its striking aesthetics and strong value proposition at the price point.

At a glance

15 of 29 specs differ
Diameter
King Turtle45mm
HydroConquest 43mm43mm
Power Reserve
King Turtle41h
HydroConquest 43mm
Water Resistance
King Turtle200m
HydroConquest 43mm
MSRP
King Turtle$650
HydroConquest 43mm$4,700

Full specifications

Case

6 specs
Diameter
45mm
43mm
Thickness
13.2mm
0mm
Lug-to-Lug
47.7mm
0mm
Lug Width
22mm
0mm
Water Resistance
200m
Caseback
Solid

Crystal & Dial

4 specs
AR Coating
Anti-reflective coating on inner surface
Dial Color
Matt black ceramic
Indices
Applied
Lume
LumiBrite on hands and index(es)
None

Movement

4 specs
Caliber
Seiko 4R36
Power Reserve
41h
0h
Jewels
24
0
Complications
None
Date

Pricing

1 specs
MSRP
$650
$4,700
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