Side by side

Baltic Hermétique SummervsSeiko Diamond Collection

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

Hermétique Summer
BalticHermétique Summer
MSRP $594
Diamond Collection
SeikoDiamond Collection
MSRP $525
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.

Seiko Diamond Collection

Owners widely praise the Seiko Diamond Collection for its stunning beauty, particularly highlighting the 14 diamonds and the captivating mother-of-pearl dial. Its 33.2mm case size, 100m water resistance, sapphire crystal, and lightweight build are appreciated features contributing to comfortable wear. Some owners find the dial detail is best appreciated in direct sunlight. The gold plating on some models may show fading from desk work over time. Overall, owners rate the Seiko Diamond Collection highly for its dazzling aesthetics and comfortable, well-finished design at its price point.

At a glance

11 of 29 specs differ
Diameter
Hermétique Summer37mm
Diamond Collection32mm
Power Reserve
Hermétique Summer42h
Diamond Collection40h
Water Resistance
Hermétique Summer150m
Diamond Collection100m
MSRP
Hermétique Summer$594
Diamond Collection$525

Full specifications

Case

5 specs
Diameter
37mm
32mm
Thickness
10.8mm
8.2mm
Lug-to-Lug
46mm
39mm
Lug Width
20mm
15mm
Water Resistance
150m
100m

Crystal & Dial

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

Movement

2 specs
Caliber
Miyota 9039
6N32
Power Reserve
42h
40h

Pricing

1 specs
MSRP
$594
$525
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