Side by side

Sternglas Naos GroßdatumvsZelos Hammerhead V3 300m Titanium

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

Naos Großdatum
SternglasNaos Großdatum
MSRP $323
Hammerhead V3 300m Titanium
ZelosHammerhead V3 300m Titanium
MSRP $559

At a glance

15 of 29 specs differ
Diameter
Naos Großdatum38mm
Hammerhead V3 300m Titanium44mm
Power Reserve
Naos Großdatum
Hammerhead V3 300m Titanium40h
Water Resistance
Naos Großdatum50m
Hammerhead V3 300m Titanium300m
MSRP
Naos Großdatum$323
Hammerhead V3 300m Titanium$559

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
38mm
44mm
Thickness
10mm
13mm
Lug-to-Lug
42mm
44mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
50m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Ti - Mosaic MOP
Lume
Luminova Punkten
None

Movement

4 specs
Caliber
Seiko VJ76
Seiko NH35
Type
Quartz
Automatic
Power Reserve
40h
Jewels
25

Pricing

1 specs
MSRP
$323
$559

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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 Hammerhead V3 300m Titanium

The Zelos Hammerhead V3 300m Titanium is widely praised for its exceptional lume, unique and beautiful dial finishing that reflects light dramatically, and solid build quality that exceeds its price point. Owners also highlight its comfortable wearability, especially the lightweight titanium variant, and the convenient on-the-fly micro-adjustment on the bracelet. One owner notes the Japanese movement performs better than anticipated, and the Ti-Damascus variant features a unique, patterned dial and bezel. However, some owners find the 44mm size large, the crown "off," and the bracelet clasp could be more scratch-resistant, with resizing pins described as stubborn. Reattaching the bracelet after removal is also noted as extremely difficult. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its impressive dial aesthetics and value for money.

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