Side by side

Sternglas Naos GroßdatumvsSeiko King Turtle

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

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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 King Turtle

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many appreciating its faithful recreation of classic designs and proven movements like the 4R36 and 6R15. Reviewers highlight impressive case finishing and durability, noting that even larger models wear smaller than expected due to thoughtful case design. Some owners find the solar quartz models a great entry point, appreciating their design and solar functionality. However, specific variants receive critiques: the bracelet clasp on the Samurai is described as underwhelming, and the Sumo's bracelet width and clasp are seen as too narrow and rudimentary, respectively. The SPB183 is considered expensive for a Japanese watch, and its lume is noted as not quite matching older Seiko Monster models. The GMT function on the SPB519 is deemed less practical for serious travel, and its bezel clicks are described as quieter and mushier.

From video reviewers

The King Turtle's ceramic bezel and sapphire crystal are significant upgrades. Reviewers noted a slight price increase for these features.

At a glance

14 of 29 specs differ
Diameter
Naos Großdatum38mm
King Turtle45mm
Power Reserve
Naos Großdatum
King Turtle41h
Water Resistance
Naos Großdatum50m
King Turtle200m
MSRP
Naos Großdatum$323
King Turtle$650

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
38mm
45mm
Thickness
10mm
13.2mm
Lug-to-Lug
42mm
47.7mm
Lug Width
20mm
22mm
Water Resistance
50m
200m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Dial Color
Lume
Luminova Punkten
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Seiko VJ76
Seiko 4R36
Type
Quartz
Automatic
Power Reserve
41h
Jewels
24

Pricing

1 specs
MSRP
$323
$650
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