Side by side

Nivada Grenchen Antarctic SpidervsZelos Helica Moonphase

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

Antarctic Spider
Nivada GrenchenAntarctic Spider
MSRP $945
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

13 of 29 specs differ
Diameter
Antarctic Spider38mm
Helica Moonphase39mm
Power Reserve
Antarctic Spider38h
Helica Moonphase40h
Water Resistance
Antarctic Spider200m
Helica Moonphase100m
MSRP
Antarctic Spider$945
Helica Moonphase$1,049

Full specifications

Case

7 specs
Category
Tool
Moonphase
Diameter
38mm
39mm
Thickness
11.1mm
10mm
Lug-to-Lug
46mm
39mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed + Polished
Brushed and polished
Water Resistance
200m
100m

Crystal & Dial

2 specs
Dial Color
White
Meteorite
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW200
Sellita SW288 Moonphase
Power Reserve
38h
40h
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$945
$1,049

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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.

Nivada Grenchen Antarctic Spider

Owners widely praise the Nivada Grenchen Antarctic for its historically significant design and excellent wearability, particularly its thin case and non-modern sizing. Reviewers note its charming versatility and faithful vintage execution, with one owner highlighting the buttery winding action and another the affordable price point. However, some owners find the dial difficult to read, and the lume is noted as weak. The manual-wind movement's crown re-engagement is described as finicky, and minute marker application has been criticized as imperfect. The beige Super-LumiNova is also considered too yellow by one reviewer. Overall, owners and reviewers rate the Nivada Grenchen Antarctic highly for its faithful vintage design and wearability at an attractive price.

Zelos Helica Moonphase

Owners widely praise the Zelos Helica Moonphase for its gorgeous aventurine dial, unique industrial-dress aesthetic, and comfortable wearability, with one owner calling it spectacular and another their favorite Zelos. The moonphase complication is frequently highlighted as beautiful, though some find the double moon distracting or the dial cluttered. A manual-wind movement combined with a screw-down crown is noted as a drawback by some, requiring adjustment and potentially feeling fragile when fully wound, while one owner reports a 43-hour power reserve. On balance, owners rate the Zelos Helica Moonphase highly for its stunning aventurine dial and unique design at its price point.

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