Side by side

Seestern S450 Ocean StarvsHELM Vanuatu Titanium

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

S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299
Vanuatu Titanium
HELMVanuatu Titanium
MSRP $350

At a glance

14 of 29 specs differ
Diameter
S450 Ocean Star40mm
Vanuatu Titanium42mm
Power Reserve
S450 Ocean Star41h
Vanuatu Titanium40h
Water Resistance
S450 Ocean Star100m
Vanuatu Titanium300m
MSRP
S450 Ocean Star$299
Vanuatu Titanium$350

Full specifications

Case

6 specs
Diameter
40mm
42mm
Thickness
12mm
14mm
Lug-to-Lug
48mm
50mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Titanium
Water Resistance
100m
300m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
White
Black
Lume
Tritium
Super-LumiNova

Movement

4 specs
Caliber
TMI NH35A
Seiko Instruments NH35
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
40h
Complications
GMT, Date
Date

Pricing

1 specs
MSRP
$299
$350

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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.

Seestern S450 Ocean Star

Owners widely praise the Seestern S450 Ocean Star's Yachtmaster-style case and flawless bracelet finishing, with one owner noting the ST2130 movement keeps good time. The bezel action is described as having individual notches but feeling like a friction bezel, while another owner flags the bezel and crown action as smooth with perfect alignment. Lume is a point of contention, with one source describing it as a nice cool blue with ice-white application, while others note it as weak or not matching Prospex standards, despite using BGW-9. The watch is considered a "big boy" ideal for larger wrists (19cm+), potentially too large for 17cm wrists due to its size and non-tapering bracelet. Overall, owners rate the Seestern S450 Ocean Star highly for its build quality and finishing at the price point, despite some reservations about its size and lume intensity.

HELM Vanuatu Titanium

The HELM Vanuatu Titanium is widely praised by owners for its lightweight titanium construction, brushed gunmetal finish, simple design, legible hands and markers, and excellent lume, offering significant value at $300. Owners note the watch looks good in person and express enthusiasm for their existing Vanuatu Ti models. Some owners wish for Miyota 9x movements in place of the NH series. The unhardened titanium scratches easily, and the 42mm case may be too large for smaller wrists. A significant drawback is the long waiting list. On balance, owners rate the HELM Vanuatu Titanium highly for its lightweight titanium build and excellent lume at the price point.

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