Side by side

Sugess Seestern S430 Titanium DivervsSeiko Prospex Sea 1968 Heritage Diver's GMT Watch

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

At a glance

14 of 29 specs differ
Diameter
Seestern S430 Titanium Diver40mm
Prospex Sea 1968 Heritage Diver's GMT Watch42mm
Power Reserve
Seestern S430 Titanium Diver40h
Prospex Sea 1968 Heritage Diver's GMT Watch72h
Water Resistance
Seestern S430 Titanium Diver200m
Prospex Sea 1968 Heritage Diver's GMT Watch300m
MSRP
Seestern S430 Titanium Diver$299
Prospex Sea 1968 Heritage Diver's GMT Watch$1,700

Full specifications

Case

5 specs
Diameter
40mm
42mm
Thickness
12.5mm
13.3mm
Lug-to-Lug
46mm
48.6mm
Material
Titanium
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Blue
Black
Lume
Tritium
LumiBrite on hands, index(es) and bezel

Movement

5 specs
Caliber
Seiko NH35
6R54
Beat Rate
3 vph
28,800 vph
Power Reserve
40h
72h
Jewels
25
24
Complications
GMT, Chronograph, Moonphase, Date
None

Pricing

1 specs
MSRP
$299
$1,700

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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.

Sugess Seestern S430 Titanium Diver

Owners widely praise the Sugess Seestern S430 Titanium Diver for its genuine titanium construction, making it extremely light and comfortable at 92 grams on a 6.7-inch wrist. The ceramic bezel is described as fantastic and mesmerizing to use, and the brushed finishing is noted as nice. The watch features an NH38 movement, which is appreciated for its lack of ghost date functionality. However, some owners find the price comparable to competitors and have noted issues with the clasp's fit, with some finding the existing holes insufficient and the rotating arm needing to bend. The crown unscrewing is not smooth, and the bezel action is described as gritty with uneven resistance. One owner reported a crown tube failure on a V1 model. Overall, owners rate the Sugess Seestern S430 Titanium Diver highly for its lightweight titanium build and excellent ceramic bezel, despite some concerns regarding the clasp 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.

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