Side by side

Dryden Chrono Diver Series 1vsSeiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch

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

Chrono Diver Series 1
DrydenChrono Diver Series 1
MSRP $349

At a glance

16 of 29 specs differ
Diameter
Chrono Diver Series 142mm
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
Power Reserve
Chrono Diver Series 140h
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch72h
Water Resistance
Chrono Diver Series 1101m
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
MSRP
Chrono Diver Series 1$349
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$3,600

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
42mm
42.6mm
Thickness
13.5mm
14.1mm
Lug-to-Lug
49mm
49.3mm
Lug Width
22mm
20mm
Water Resistance
101m
300m

Crystal & Dial

5 specs
Crystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Steel
Black
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

4 specs
Caliber
8L45
Type
Quartz
Automatic
Power Reserve
40h
72h
Jewels
25
35

Pricing

1 specs
MSRP
$349
$3,600

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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.

Dryden Chrono Diver Series 1

The Dryden Chrono Diver Series 1 is a 42mm mechaquartz chronograph featuring a dual-curved sapphire crystal and 100m water resistance. Owners note the VK63 movement's characteristic chronograph hand not resetting perfectly to zero, a trait present on this specific watch. The case exhibits polished chamfers on the upper lugs, and it utilizes Swiss Superluminova BGW9. On balance, owners appreciate the classic case shape and dial design of the Dryden Chrono Diver Series 1 at its price point, despite the mechaquartz movement's known reset behavior.

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.

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