Side by side

Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's WatchvsOak & Oscar The Humboldt 12-hr

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

At a glance

17 of 29 specs differ
Diameter
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
The Humboldt 12-hr39.5mm
Power Reserve
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch72h
The Humboldt 12-hr42 hoursh
Water Resistance
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
The Humboldt 12-hr200m
MSRP
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$3,600
The Humboldt 12-hr$1,750

Full specifications

Case

7 specs
Category
Diver
Tool
Diameter
42.6mm
39.5mm
Thickness
14.1mm
12.4mm
Lug-to-Lug
49.3mm
46.8mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Curved
Double-domed
AR Coating
Anti-reflective coating on inner surface
Underside
Dial Color
Black
Grey
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova

Movement

5 specs
Caliber
8L45
ETA 2892A2
Beat Rate
28,800 vph
4 vph
Power Reserve
72h
42 hoursh
Jewels
35
21
Complications
None
GMT, Chronograph, Date

Pricing

1 specs
MSRP
$3,600
$1,750

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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.

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.

Oak & Oscar The Humboldt 12-hr

Oak & Oscar The Humboldt 12-hr owners widely praise its comfortable, solid bracelet with screw links and tight end-link fit, along with its awesome sandwich dial featuring superb grain and crisp details. The 12-hour bezel is noted as excellent for tracking a second time zone, and the orange second hand adds a nice pop. One owner reports the watch has outstanding quality and a perfect fit on smaller wrists, while another notes its legibility and great presence on various straps. A reviewer describes it as a 40mm stainless steel tool watch with a matte, brushed finish and a sandwich dial, powered by an ETA 2892-A2 movement with a 42-hour power reserve. Some in the line report the lume could be brighter. On balance, owners and reviewers rate Oak & Oscar The Humboldt 12-hr highly for its build quality and versatile tool-watch design.

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