Side by side

Boschett Timepieces Cave DwellervsSeiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited 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.

Boschett Timepieces Cave Dweller

Owners praise the Boschett Cave Dweller's rugged look, versatility, and reliable performance, with one owner noting its appeal due to limited production. A reviewer flags non-drilled lugs as frustrating and criticizes the bezel grip, while also noting average blue lume performance and a small date window. Overall, owners value the Boschett Cave Dweller for its robust design and dependable functionality, with specific features like the practical clasp being a highlight for some.

Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition

The Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition is praised for its distinctive blue sea ice-inspired dial with a gradient effect and textured finish, celebrating its partnership with JAMSTEC. It is powered by the automatic Calibre 8L45 movement, which provides a 72-hour power reserve. The watch features a 42.6mm stainless steel case with a super-hard coating, a ceramic bezel, and a dual-curved sapphire crystal, offering 300m water resistance. Accuracy is rated between -5/+10 seconds per day. Overall, reviewers highlight the unique dial design and robust specifications as key strengths of the Seiko Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition.

At a glance

12 of 29 specs differ
Diameter
Cave Dweller44mm
Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition42.6mm
Power Reserve
Cave Dweller40h
Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition72h
Water Resistance
Cave Dweller1,000m
Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition300m
MSRP
Cave Dweller$750
Prospex Marinemaster Marinemaster 1968 Heritage JAMSTEC Limited Edition$3,900

Full specifications

Case

5 specs
Diameter
44mm
42.6mm
Thickness
16.5mm
14.1mm
Lug-to-Lug
46mm
49.3mm
Lug Width
22mm
20mm
Water Resistance
1000m
300m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Yes
Anti-reflective coating on inner surface
Lume
Superluminova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Sellita SW-200
8L45
Power Reserve
40h
72h
Jewels
25
35

Pricing

1 specs
MSRP
$750
$3,900
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