Side by side

Seiko Prospex SeavsYema Superman Worldtime GMT

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

Prospex Sea
SeikoProspex Sea
MSRP $1,500
Superman Worldtime GMT
YemaSuperman Worldtime GMT
MSRP $1,549

At a glance

14 of 29 specs differ
Diameter
Prospex Sea43.5mm
Superman Worldtime GMT39mm
Power Reserve
Prospex Sea70h
Superman Worldtime GMT40h
Water Resistance
Prospex Sea200m
Superman Worldtime GMT300m
MSRP
Prospex Sea$1,500
Superman Worldtime GMT$1,549

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
43.5mm
39mm
Thickness
13.3mm
Lug-to-Lug
51mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
39mm Automatic
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
6R35
Power Reserve
70h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$1,500
$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.

Seiko Prospex Sea

Seiko Prospex Sea owners and reviewers praise its Marinemaster-style aesthetic, excellent case finishing, and impressive LumiBrite lume. The watch is powered by the 6R15 movement with a 50-hour power reserve and comes with both a steel bracelet and a silicone strap. Some owners find the Seiko Prospex Sea to be a great value and a suitable first "proper" watch, while others report it is uncomfortably big, thick, and heavy on smaller wrists. Reviewers note the GMT function is secondary with a less prominent scale, and the bezel's quieter clicks may not appeal to all. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its classic design and finishing at its price point.

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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