Side by side

Baltic Aquascaphe GMTvsSeestern S450 Ocean Star

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

Aquascaphe GMT
BalticAquascaphe GMT
MSRP $1,015
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

14 of 29 specs differ
Diameter
Aquascaphe GMT39mm
S450 Ocean Star40mm
Power Reserve
Aquascaphe GMT42h
S450 Ocean Star41h
Water Resistance
Aquascaphe GMT100m
S450 Ocean Star100m
MSRP
Aquascaphe GMT$1,015
S450 Ocean Star$299

Full specifications

Case

5 specs
Category
GMT
Diver
Diameter
39mm
40mm
Thickness
13mm
12mm
Lug-to-Lug
47mm
48mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Green
White
Lume
SuperLuminova
Tritium

Movement

5 specs
Caliber
SOPROD C125 GMT
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
42h
41h
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$1,015
$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.

Baltic Aquascaphe GMT

The Baltic Aquascaphe GMT is widely praised for its compact 39mm case size, comfortable thickness, and refined, timeless design with a crisp, well-executed dial and sapphire bezel insert. Owners and reviewers alike highlight its excellent value and slick appearance, noting the vintage-inspired aesthetic with brushed surfaces and painted indexes. Some reviewers consider the lume adequate but not exceptionally bright, and the case finishing, while fitting the tool-watch ethos, lacks embellishments like polished bevels. The Soprod C125 movement features a 42-hour power reserve and a non-independent hour hand setting, though the 24-click bezel is seen as practical. Certain bezel color options are noted as potentially difficult to pair with outfits. Overall, owners and reviewers rate the Baltic Aquascaphe GMT highly for its exceptional value and refined, compact design.

From video reviewers

The Baltic Aquascaphe GMT features a Swiss Soprod C125 movement, a notable upgrade for the brand. Its attractive design fits within the popular $1000 price point. A significant drawback is the lack of a quick-set date function, requiring manual adjustment.

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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