Side by side

Sternglas Naos GroßdatumvsSeiko Astron GPS Solar 2025 Limited Edition

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

Naos Großdatum
SternglasNaos Großdatum
MSRP $323
Astron GPS Solar 2025 Limited Edition
SeikoAstron GPS Solar 2025 Limited Edition
MSRP $2,600

At a glance

14 of 29 specs differ
Diameter
Naos Großdatum38mm
Astron GPS Solar 2025 Limited Edition42mm
Power Reserve
Naos Großdatum
Astron GPS Solar 2025 Limited Edition40h
Water Resistance
Naos Großdatum50m
Astron GPS Solar 2025 Limited Edition100m
MSRP
Naos Großdatum$323
Astron GPS Solar 2025 Limited Edition$2,600

Full specifications

Case

7 specs
Category
Dress
GMT
Diameter
38mm
42mm
Thickness
10mm
12mm
Lug-to-Lug
42mm
47.9mm
Lug Width
20mm
14mm
Material
Stainless Steel
Titanium
Water Resistance
50m
100m

Crystal & Dial

3 specs
AR Coating
Inner
Super-clear coating
Dial Color
Black
Lume
Luminova Punkten
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Seiko VJ76
3X62
Power Reserve
40h
Jewels
10

Pricing

1 specs
MSRP
$323
$2,600

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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.

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.

Seiko Astron GPS Solar 2025 Limited Edition

The Seiko Astron GPS Solar 2025 Limited Edition is widely praised for its advanced GPS time and date adjustment capabilities, powered by light to eliminate battery changes. Owners and reviewers highlight its impressive accuracy and the convenience of automatic time zone updates, with some specifically commending the wearability of the 39mm size and its clean, simple design. However, reception of the GPS signal requires an unobstructed view of the sky, and manual time zone adjustments are necessary for Daylight Saving Time on some variants. One owner notes a slight imperfection in chapter ring alignment on the 39mm model. On balance, owners and reviewers rate the Seiko Astron GPS Solar 2025 Limited Edition highly for its satellite-powered timekeeping and improved wearability in the 39mm configuration.

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