Side by side

Brillier GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black FacevsSeiko Prospex Sea

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.

Brillier GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black Face

The Brillier GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black Face earns strong owner appreciation for its dual-time functionality and clean dial design without a date window. The black dial is particularly praised for its depth and presence in person. Owners appreciate the asymmetrical 4 o'clock pusher as part of the design language, though one notes a preference for a thinner case profile. Overall, owners rate the GMT highly for its functional dual-time complication and striking black dial execution at its price point.

Seiko Prospex Sea

Owners and reviewers widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many noting its comfortable wearability and faithful design recreations. Some owners report the watch can feel big, thick, and heavy on smaller wrists, while others find the sizing perfect. The bezel action is frequently highlighted as smooth and precise, often exceeding that of less expensive models. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its impressive finishing and value proposition.

At a glance

11 of 29 specs differ
Diameter
GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black Face38mm
Prospex Sea41.7mm
Power Reserve
GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black Face
Prospex Sea41h
Water Resistance
GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black Face
Prospex Sea200m
MSRP
GMT (DUAL TIME) Mechanical Automatic Round 38 mm Gold Case Black Face$795
Prospex Sea$595

Full specifications

Case

5 specs
Category
Diver
Diameter
38mm
41.7mm
Thickness
12mm
12.3mm
Lug-to-Lug
0mm
49.5mm
Water Resistance
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Hardlex
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Seiko 4R35
Power Reserve
0h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$795
$595
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