Side by side

Sternglas Naos SolarvsSeiko Prospex Rotocall

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

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

At a glance

13 of 29 specs differ
Diameter
Naos Solar38mm
Prospex Rotocall37mm
Power Reserve
Naos Solar
Prospex Rotocall40h
Water Resistance
Naos Solar50m
Prospex Rotocall100m
MSRP
Naos Solar$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

4 specs
Caliber
Seiko VJ76
A824
Type
Solar
Quartz
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 Solar

Owners widely praise the Sternglas Naos Solar for its elegant Bauhaus-inspired minimalist dial, slim profile, and value for money. The scratch-resistant curved sapphire crystal and functional date mechanism are noted as durable features, with one owner reporting good wear over a year. The solar power and accuracy are highlighted as practical advantages over automatic movements, which some find loud. However, opinions are split, with some owners finding the watch underwhelming and cheap-looking, like a toy, while others love its appearance in person and its clean, appealing design as a smartwatch alternative. The stock leather strap is described as decent but basic and potentially short for larger wrists, with one owner advising a third-party replacement for durability. One owner of a different variant noted the date font is too small to be useful.

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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