Side by side

Baltic Hermétique SummervsZelos Spearfish GMT

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

Hermétique Summer
BalticHermétique Summer
MSRP $594
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

12 of 29 specs differ
Diameter
Hermétique Summer37mm
Spearfish GMT40mm
Power Reserve
Hermétique Summer42h
Spearfish GMT40h
Water Resistance
Hermétique Summer150m
Spearfish GMT200m
MSRP
Hermétique Summer$594
Spearfish GMT$999

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
37mm
40mm
Thickness
10.8mm
13mm
Lug-to-Lug
46mm
40mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
150m
200m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Orange
Frost
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9039
Sellita SW330-2
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$594
$999

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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 Hermétique Summer

Reviewers highlight the Baltic Hermétique Summer's compact 37mm brushed case with a polished bezel and 150 meters of water resistance. The watch features glossy dials in bright colors with raised BGW9 Super-LumiNova indices that emit a strong blue glow, and it comes with color-matched FKM rubber straps or Baltic bracelets. The Miyota 9039 movement supports hacking and hand-winding. However, the recessed crown can be difficult to manipulate if fingernails are not long enough, and the movement has a stated accuracy of -10/+30 seconds per day. Overall, reviewers praise the Baltic Hermétique Summer for its well-balanced, colorful dials and strong lume at an affordable price point.

Zelos Spearfish GMT

The Zelos Spearfish GMT is widely praised for its exceptional value, with reviewers highlighting its superb finishing, flawless machining, and a tool-less micro-adjustment clasp that exceeds its price point. It features a La Joux-Perret G100 movement with a 68-hour power reserve, achieving an average accuracy of +2.6 seconds per day, or a Miyota 9075 movement offering flier-style GMT functionality. The 40mm case and bidirectional 48-click ceramic bezel are well-executed, though one reviewer noted a minor compromise in the end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and value proposition.

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