Side by side

Baltic Hermétique SummervsSternglas Naos Großdatum

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

Hermétique Summer
BalticHermétique Summer
MSRP $594
Naos Großdatum
SternglasNaos Großdatum
MSRP $323

At a glance

12 of 29 specs differ
Diameter
Hermétique Summer37mm
Naos Großdatum38mm
Power Reserve
Hermétique Summer42h
Naos Großdatum
Water Resistance
Hermétique Summer150m
Naos Großdatum50m
MSRP
Hermétique Summer$594
Naos Großdatum$323

Full specifications

Case

4 specs
Diameter
37mm
38mm
Thickness
10.8mm
10mm
Lug-to-Lug
46mm
42mm
Water Resistance
150m
50m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Orange
Lume
BGW9
Luminova Punkten

Movement

4 specs
Caliber
Miyota 9039
Seiko VJ76
Type
Automatic
Quartz
Power Reserve
42h
Jewels
25

Pricing

1 specs
MSRP
$594
$323

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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.

Sternglas Naos Großdatum

The Sternglas Naos Großdatum is praised for its Bauhaus aesthetic and value, with one owner finding it an affordable alternative to other designs. However, some owners report it feels underwhelming and cheap, with a printed-on face, small font, and toy-like hands, and find the strap to be of poor quality. The watch features a 38mm stainless steel case, an Alabaster dial with beige LumiNova, and a Seiko TMI VJ76 quartz movement rated for -20/+20 seconds per month. On balance, owners and reviewers are divided, with the primary point of contention being the perceived quality and aesthetic execution of the Sternglas Naos Großdatum.

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