Side by side

Baltic Hermétique SummervsGrand Seiko STGF359

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

Hermétique Summer
BalticHermétique Summer
MSRP $594
STGF359
Grand SeikoSTGF359
MSRP $2,600
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 STGF359

Owners widely praise the Grand Seiko STGF359 for its elegant pairing with an engagement ring. Some owners find the 29mm case size too small for a man's wrist, while others suggest it can be worn by men with smaller wrists, recommending an in-person try-on. One owner notes potential date wheel misalignment requiring servicing. The bracelet has a maximum perimeter of 185mm, with extra links available. On balance, owners value the Grand Seiko STGF359 for its elegant aesthetic, though its small size is a point of consideration.

From video reviewers

The Grand Seiko STGF359 features a 9F quartz movement with exceptional accuracy, deviating by only +/−10 seconds per year. A drawback of the watch is its 40mm case size, which may be a concern for those with smaller wrists. Reviewers disagree on the type of movement, with one praising the 9F quartz and the other highlighting the spring drive movement.

At a glance

11 of 29 specs differ
Diameter
Hermétique Summer37mm
STGF35928.9mm
Power Reserve
Hermétique Summer42h
STGF35940h
Water Resistance
Hermétique Summer150m
STGF359100m
MSRP
Hermétique Summer$594
STGF359$2,600

Full specifications

Case

5 specs
Diameter
37mm
28.9mm
Thickness
10.8mm
8.7mm
Lug-to-Lug
46mm
35.4mm
Lug Width
20mm
14mm
Water Resistance
150m
100m

Crystal & Dial

2 specs
Dial Color
Orange
Black
Lume
BGW9
None

Movement

3 specs
Caliber
Miyota 9039
4J52
Type
Automatic
Quartz
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$594
$2,600
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