Side by side

Glycine Combat SubvsSeiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

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.

Glycine Combat Sub

Owners widely praise the Glycine Combat Sub for its exceptional thinness, with many noting its 10.4mm to 10.8mm profile for a diver, perfect proportions, and solid build quality that offers significant value, especially at discounted prices. Its unique aesthetic is appreciated for avoiding homage looks, and the lug design contributes to a smaller perceived wear size despite its 42mm case. Some owners report an inconsistent power reserve and sub-par lume that can be difficult to read at night, while one owner noted a slightly off-color lume pip on the chapter ring. Overall, owners rate the Glycine Combat Sub highly for its refined feel, slim profile, and value proposition.

Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

The Seiko Prospex Marinemaster 1968 Heritage Diver's Watch is widely praised for its excellent quality and finishing, with reviewers and owners noting its GS-level craftsmanship and Zaratsu-inspired polishing. Owners appreciate its refined design, comfortable case shape, and the 4:00 crown position, with some finding it more manageable on the wrist than other models. The Caliber 8L45 movement offers a 72-hour power reserve and accuracy within -5/+10 seconds per day, and the bracelet features an improved clasp with an extension system. However, some find the price point high, and one reviewer noted the unsigned winding crown as a missed opportunity. On balance, owners and reviewers rate the Seiko Prospex Marinemaster 1968 Heritage Diver's Watch highly for its premium finishing and tool-like appearance at its price point.

At a glance

18 of 29 specs differ
Diameter
Combat Sub42mm
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
Power Reserve
Combat Sub38h
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch72h
Water Resistance
Combat Sub200m
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
MSRP
Combat Sub$1,850
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$3,600

Full specifications

Case

7 specs
Diameter
42mm
42.6mm
Thickness
10.45mm
14.1mm
Lug-to-Lug
49.3mm
Lug Width
22mm
20mm
Finish
Water Resistance
200m
300m
Caseback

Crystal & Dial

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

Movement

5 specs
Caliber
Sellita SW200-1
8L45
Beat Rate
28,800 vph
0 vph
Power Reserve
38h
72h
Jewels
26
35
Complications
Date
None

Pricing

1 specs
MSRP
$1,850
$3,600
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