Side by side

HELM Khuraburi TitaniumvsSeestern S450 Ocean Star

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

Khuraburi Titanium
HELMKhuraburi Titanium
MSRP $375
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

15 of 29 specs differ
Diameter
Khuraburi Titanium42mm
S450 Ocean Star40mm
Power Reserve
Khuraburi Titanium40h
S450 Ocean Star41h
Water Resistance
Khuraburi Titanium300m
S450 Ocean Star100m
MSRP
Khuraburi Titanium$375
S450 Ocean Star$299

Full specifications

Case

6 specs
Diameter
42mm
40mm
Thickness
16mm
12mm
Lug-to-Lug
49mm
48mm
Lug Width
22mm
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal Shape
Domed
Flat
AR Coating
Yes
Inner
Dial Color
Black
White
Lume
Super-LumiNova
Tritium

Movement

4 specs
Caliber
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
40h
41h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$375
$299

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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.

HELM Khuraburi Titanium

Owners widely praise the HELM Khuraburi Titanium for its exceptional lume, robust build, and great value, with many noting its lightweight titanium construction and comfortable wearability. The 4 o'clock crown and superb crown action are frequently highlighted as positive attributes. Some owners find the watch's thickness, around 16mm, to be substantial, and one reported the Seiko NH38 movement ran over 40 seconds fast per day, while another criticized the NH35 movement's 40-hour power reserve. On balance, owners rate the HELM Khuraburi Titanium highly for its outstanding lume and impressive build quality at its price point.

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.

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