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Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's WatchvsSeiko Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition

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.

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.

Seiko Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition

The Seiko Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition is praised for its attractive emerald green sunburst dial with gold accents and its comfortable wearability. Owners note the dial looks gorgeous in the right light, and some find it fits better than other models. The watch features a 40mm steel case, a domed sapphire crystal, and 300m water resistance, powered by the 6R55 movement with a 72-hour power reserve. However, some find the watch wears top-heavy due to its density and case design, and the bracelet clasp is criticized for stamped parts and limited micro-adjustment. The retail price of €1,700 is considered high by some, with sales recommended. Overall, owners and reviewers appreciate the dial's beauty and the watch's comfortable fit, despite some reservations about its weight distribution and bracelet clasp.

At a glance

6 of 29 specs differ
Diameter
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition40mm
Power Reserve
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch72h
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition72h
Water Resistance
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition300m
MSRP
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$3,600
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition$1,550

Full specifications

Case

3 specs
Diameter
42.6mm
40mm
Thickness
14.1mm
13mm
Lug-to-Lug
49.3mm
46.4mm

Movement

2 specs
Caliber
8L45
6R55
Jewels
35
24

Pricing

1 specs
MSRP
$3,600
$1,550
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