Side by side

Sternglas Naos GroßdatumvsZelos Spearfish GMT

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

Naos Großdatum
SternglasNaos Großdatum
MSRP $323
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

13 of 29 specs differ
Diameter
Naos Großdatum38mm
Spearfish GMT40mm
Power Reserve
Naos Großdatum
Spearfish GMT40h
Water Resistance
Naos Großdatum50m
Spearfish GMT200m
MSRP
Naos Großdatum$323
Spearfish GMT$999

Full specifications

Case

6 specs
Category
Dress
GMT
Diameter
38mm
40mm
Thickness
10mm
13mm
Lug-to-Lug
42mm
40mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
200m

Crystal & Dial

2 specs
Dial Color
Frost
Lume
Luminova Punkten
None

Movement

4 specs
Caliber
Seiko VJ76
Sellita SW330-2
Type
Quartz
Automatic
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$323
$999

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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.

Zelos Spearfish GMT

The Zelos Spearfish GMT is widely praised for its exceptional value, with reviewers highlighting its superb finishing, flawless machining, and a tool-less micro-adjustment clasp that exceeds its price point. It features a La Joux-Perret G100 movement with a 68-hour power reserve, achieving an average accuracy of +2.6 seconds per day, or a Miyota 9075 movement offering flier-style GMT functionality. The 40mm case and bidirectional 48-click ceramic bezel are well-executed, though one reviewer noted a minor compromise in the end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and value proposition.

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