Side by side

Sternglas Naos GroßdatumvsSeiko Prospex Rotocall

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

Naos Großdatum
SternglasNaos Großdatum
MSRP $323
Prospex Rotocall
SeikoProspex Rotocall
MSRP $550

At a glance

12 of 29 specs differ
Diameter
Naos Großdatum38mm
Prospex Rotocall37mm
Power Reserve
Naos Großdatum
Prospex Rotocall40h
Water Resistance
Naos Großdatum50m
Prospex Rotocall100m
MSRP
Naos Großdatum$323
Prospex Rotocall$550

Full specifications

Case

5 specs
Category
Dress
Sport
Diameter
38mm
37mm
Thickness
10mm
10.6mm
Lug-to-Lug
42mm
43.5mm
Water Resistance
50m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Black
Lume
Luminova Punkten
None

Movement

3 specs
Caliber
Seiko VJ76
A824
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$323
$550

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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 Prospex Rotocall

Owners widely praise the Seiko Prospex Rotocall for its charismatic retro design and comfortable 37mm size, with many appreciating its space-faring heritage. However, multiple sources criticize its price point, suggesting it is too high for an all-digital quartz watch with features like a stamped clasp, mineral crystal, and standard quartz movement. Some owners also note drawbacks such as a flimsy battery mount and split pin bracelet construction. On balance, owners and reviewers find the Seiko Prospex Rotocall visually appealing and a faithful re-release, but its value proposition is frequently questioned due to its price.

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