Side by side

Glycine Combat Sub Sport GMT BronzevsSeiko Prospex Sea

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

Combat Sub Sport GMT Bronze
GlycineCombat Sub Sport GMT Bronze
MSRP $2,995
Prospex Sea
SeikoProspex Sea
MSRP $625

At a glance

17 of 29 specs differ
Diameter
Combat Sub Sport GMT Bronze42mm
Prospex Sea43.8mm
Power Reserve
Combat Sub Sport GMT Bronze48h
Prospex Sea41h
Water Resistance
Combat Sub Sport GMT Bronze200m
Prospex Sea200m
MSRP
Combat Sub Sport GMT Bronze$2,995
Prospex Sea$625

Full specifications

Case

7 specs
Category
GMT
Diver
Diameter
42mm
43.8mm
Thickness
12mm
12.8mm
Lug-to-Lug
48.7mm
Material
Bronze
Stainless Steel
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Anti-reflective coating on inner surface
Dial Color
Blue
Black
Indices
Applied
Lume
Luminous
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
SW330-2
4R35
Power Reserve
48h
41h
Jewels
25
23
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$2,995
$625

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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.

Glycine Combat Sub Sport GMT Bronze

Owners report the Glycine Combat Sub Sport GMT Bronze offers a unique aesthetic and remarkable value, often found at significant discounts. One owner notes difficulty matching straps with the bronze dial and that seawater exposure can cause rapid, undesirable patina, suggesting regular cleaning mitigates issues. Another owner flags sub-par lume that is difficult to read at night and an inconsistent power reserve that may not reach the advertised 42 hours. On balance, owners value the Glycine Combat Sub Sport GMT Bronze for its unique aesthetic and strong value proposition, though lume and power reserve performance are noted concerns.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value, solid build quality, and comfortable wearability, with many models featuring impressive lume and attractive dials. Owners and reviewers highlight the modern upgrades on classic designs, such as drilled lugs and reliable movements with hacking and hand-winding capabilities. Some models are noted for their refined case finishing and scratch resistance. Accuracy figures vary, with one owner reporting approximately 4 seconds fast per day, while others find the movements offer good performance for the price. Concerns raised by owners and reviewers include clasps that can feel generic or cheap, and lug widths that some find disproportionate to the case size on certain models. The thickness and weight of some Prospex Sea watches are also noted as substantial. The GMT function on specific models is considered secondary and difficult to read for true travel purposes.

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