Seiko Prospex Marinemaster 1965 Heritage Diver's WatchvsVentus Watches Northstar

lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures

Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Seiko Prospex Marinemaster 1965 Heritage Diver's Watch at true scale

Prospex Marinemaster 1965 Heritage Diver's Watch

Ventus Watches Northstar at true scale

Northstar

Diameter

39.5mm

40mm

Lug-to-Lug

47.2mm

45mm

lowest

Thickness

12.3mm

lowest

13mm

Water Resistance

200m

300m

highest

Power Reserve

45h

n/a

MSRP

$2,800

n/a

Movement

Seiko 6L37

Seiko NH35

Case

4 specs
Diameter
39.5mm
40mm
Thickness
12.3mm
13mm
Lug-to-Lug
47.2mm
45mm
Water Resistance
200m
300m

Crystal & Dial

4 specs
Crystal Shape
Box
n/a
AR Coating
Anti-reflective coating on inner surface
n/a
Dial Color
n/a
n/a
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
Seiko 6L37
Seiko NH35
Power Reserve
45h
n/a
Jewels
26
0

Pricing

1 specs
MSRP
$2,800
n/a
Keep your wishlist and collection together in the appExplore the app

Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko Prospex Marinemaster 1965 Heritage Diver's Watch

The Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch is praised for its modern execution of a classic design, with reviewers noting the appealing 39.5mm case size and updated bracelet that improve wearability. Some reviewers mention the 6L37 movement has a 46-hour power reserve, with accuracy rated around -10/+15 seconds per day. A drawback identified by reviewers is the lack of tool-free micro-adjustment on the clasp. Overall, owners and reviewers find the Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch to be a handsome re-interpretation of a beloved design, with its improved wearability being a key strength.

Ventus Watches Northstar

Owners praise the Ventus Northstar for its overbuilt and practical diver watch aspects, with perceived quality far above its price point. One owner notes the brass case measures 40mm with a 45mm lug to lug and 13mm thickness, featuring a double-domed sapphire crystal with inner AR coating. The case is rated for 300m water resistance. Some owners find the N1 version's dial underwhelming and the rubber strap flimsy, while one owner reports the white dial WD007ST has a noticeably misaligned date wheel. Overall, owners rate the Ventus Northstar highly for its exceptional value and robust build quality at its price point.

Similar watches

Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.

DiscussionNot started

Also compared

Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.