Side by side

Seestern S450 Ocean StarvsNodus Sector II GMT

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

S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299
Sector II GMT
NodusSector II GMT
MSRP $525

At a glance

14 of 29 specs differ
Diameter
S450 Ocean Star40mm
Sector II GMT38mm
Power Reserve
S450 Ocean Star41h
Sector II GMT41h
Water Resistance
S450 Ocean Star100m
Sector II GMT100m
MSRP
S450 Ocean Star$299
Sector II GMT$525

Full specifications

Case

5 specs
Category
Diver
GMT
Diameter
40mm
38mm
Thickness
12mm
11.9mm
Lug-to-Lug
48mm
47mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

4 specs
Crystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
White
Lume
Tritium
Swiss Super-LumiNova® BGW9 Grade A

Movement

4 specs
Caliber
TMI NH35A
TMI NH34 (GMT)
Beat Rate
21,600 vph
28,800 vph
Power Reserve
41h
41h
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$299
$525

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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.

Nodus Sector II GMT

Owners and reviewers widely praise the Nodus Sector II GMT for its versatile, refined design and surprisingly good finishing for its compelling price point. The watch features a regulated Seiko NH34 movement, running at +5 seconds per day according to one review, a sapphire crystal with AR coating, and 100 meters of water resistance. Some owners wish for lume on the GMT hand and prefer a bi-directional GMT bezel over the 120-click dive timing bezel, while others find the NH34 movement overpriced for the cost. On balance, owners and reviewers rate the Nodus Sector II GMT highly for its refined design and impressive finishing at its price point.

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