Side by side

Glycine Combat Sub Sport GMTvsSeiko Prospex Sea 1965 Heritage Diver's Watch

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

Combat Sub Sport GMT
GlycineCombat Sub Sport GMT
MSRP $2,995

At a glance

18 of 29 specs differ
Diameter
Combat Sub Sport GMT42mm
Prospex Sea 1965 Heritage Diver's Watch40mm
Power Reserve
Combat Sub Sport GMT48h
Prospex Sea 1965 Heritage Diver's Watch72h
Water Resistance
Combat Sub Sport GMT200m
Prospex Sea 1965 Heritage Diver's Watch300m
MSRP
Combat Sub Sport GMT$2,995
Prospex Sea 1965 Heritage Diver's Watch$1,300

Full specifications

Case

8 specs
Category
GMT
Diver
Diameter
42mm
40mm
Thickness
10.85mm
13mm
Lug-to-Lug
46.4mm
Lug Width
22mm
20mm
Finish
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Curved
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
6R55
Power Reserve
48h
72h
Jewels
25
24
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$2,995
$1,300

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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

Owners widely praise the Glycine Combat Sub Sport GMT for its solid build, slim wearability, and value, with many noting its comfortable fit due to curved lugs and thin case. Reviewers highlight its classic design, unique dial, and legible date window, while some owners report excellent bezel action and accuracy under +1 second per day after regulation. A minor criticism is a slightly off-color lume pip on the chapter ring, and one owner notes sub-par lume and inconsistent power reserve not always reaching 42 hours. On balance, owners and reviewers rate the Glycine Combat Sub Sport GMT highly for its comfortable wearability and value at the price point.

Seiko Prospex Sea 1965 Heritage Diver's Watch

The Seiko Prospex Sea 1965 Heritage Diver's Watch is praised for its refined engineering and updated features, including a 300m water resistance and a 72-hour power reserve from the Caliber 6R55 movement in a 40mm case. Owners note its better build quality and interesting finishing with a mix of polished and brushed surfaces. The "Tranquil Teal" variant features a jewel-toned dial with a rippling-water pattern. However, some owners consider the price too high, and concerns exist regarding the accuracy of the 6R movements, with some reporting theirs run slow. One review notes a reflective dial that impacts legibility. On balance, owners and reviewers appreciate the Seiko Prospex Sea 1965 Heritage Diver's Watch for its refined design and improved specifications over previous generations, despite some reservations about movement accuracy and price.

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