Side by side

Seestern S456 GMTvsYema Superman Worldtime GMT

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

S456 GMT
SeesternS456 GMT
MSRP $299
Superman Worldtime GMT
YemaSuperman Worldtime GMT
MSRP $1,549

At a glance

14 of 29 specs differ
Diameter
S456 GMT41mm
Superman Worldtime GMT39mm
Power Reserve
S456 GMT41hh
Superman Worldtime GMT40h
Water Resistance
S456 GMT200m
Superman Worldtime GMT300m
MSRP
S456 GMT$299
Superman Worldtime GMT$1,549

Full specifications

Case

6 specs
Diameter
41mm
39mm
Thickness
13mm
Lug-to-Lug
49mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished
Brushed and polished
Water Resistance
200m
300m

Crystal & Dial

2 specs
Dial Color
Sunray style, applied and Diamond cut Indices, C1 lume
39mm Automatic
Lume
C1
None

Movement

5 specs
Caliber
Seiko NH34
Beat Rate
3 vph
28,800 vph
Power Reserve
41hh
40h
Jewels
24
25
Complications
GMT
None

Pricing

1 specs
MSRP
$299
$1,549

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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.

Seestern S456 GMT

Owners widely praise the Seestern S456 GMT for its exceptional value and finishing that exceeds expectations, with one owner noting its accuracy surpasses that of their Seiko 5. The dial displays a pearl-like rainbow effect. Some owners would prefer a bidirectional bezel over the current unidirectional one. The Seestern S456 GMT features an NH34 movement, a 39.5mm case, sapphire crystal, and an adjustable clasp. On balance, owners rate the Seestern S456 GMT highly for its impressive finishing and value proposition at its price point.

From video reviewers

The watch features stunning, detailed finishing that is difficult to top. Reviewers did not reach a consensus on any weaknesses.

Yema Superman Worldtime GMT

Owners widely praise the Yema Superman Worldtime GMT for its premium feel, unique bezel-lock mechanism, and attractive domed crystal. Some owners note the aluminum bezel insert is less desirable than ceramic and report the bracelet clasp can be stiff or difficult to open. Inconsistent quality control and poor customer service have been flagged by some owners. On balance, owners value the Yema Superman Worldtime GMT for its distinctive features and comfortable wearability.

From video reviewers

The "Coke" bezel and maxi dial are attractive design elements. The in-house automatic GMT movement is a French alternative to pricier GMTs.

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