Side by side

Baltic Hermétique SummervsGrand Seiko SLGB001

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

Hermétique Summer
BalticHermétique Summer
MSRP $594
SLGB001
Grand SeikoSLGB001
MSRP $39,000

At a glance

10 of 29 specs differ
Diameter
Hermétique Summer37mm
SLGB00137mm
Power Reserve
Hermétique Summer42h
SLGB00172h
Water Resistance
Hermétique Summer150m
SLGB001100m
MSRP
Hermétique Summer$594
SLGB001$39,000

Full specifications

Case

4 specs
Thickness
10.8mm
11.4mm
Lug-to-Lug
46mm
44.3mm
Material
Stainless Steel
Platinum
Water Resistance
150m
100m

Crystal & Dial

2 specs
Dial Color
Orange
Black
Lume
BGW9
None

Movement

3 specs
Caliber
Miyota 9039
9RB2
Type
Automatic
Spring Drive
Power Reserve
42h
72h

Pricing

1 specs
MSRP
$594
$39,000

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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.

Grand Seiko SLGB001

The Grand Seiko SLGB001 is a limited edition platinum watch in the Evolution 9 collection, featuring a 37mm case and the new Calibre 9RB2 Spring Drive U.F.A. movement, rated to ±20 seconds per year. It has an "Ice Forest" dial with a deep blue hue and a silver seconds hand, but notably lacks lume. A criticism is the absence of a micro-adjustment clasp on its leather strap. Overall, reviewers highlight the watch's advanced movement and distinctive dial as key features.

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