Side by side

Nivada Grenchen Antarctic SpidervsSeiko King Seiko KSK

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

Antarctic Spider
Nivada GrenchenAntarctic Spider
MSRP $945
King Seiko KSK
SeikoKing Seiko KSK
MSRP $3,300

At a glance

16 of 29 specs differ
Diameter
Antarctic Spider38mm
King Seiko KSK38.6mm
Power Reserve
Antarctic Spider38h
King Seiko KSK45h
Water Resistance
Antarctic Spider200m
King Seiko KSK50m
MSRP
Antarctic Spider$945
King Seiko KSK$3,300

Full specifications

Case

7 specs
Category
Tool
Dress
Diameter
38mm
38.6mm
Thickness
11.1mm
10.7mm
Lug-to-Lug
46mm
45.8mm
Lug Width
20mm
19mm
Finish
Brushed + Polished
Brushed and polished
Water Resistance
200m
50m

Crystal & Dial

4 specs
Crystal Shape
Flat
Box
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
White
Black
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Sellita SW200
6L35
Power Reserve
38h
45h
Jewels
25
26
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$945
$3,300

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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.

Seiko King Seiko KSK

Owners and reviewers widely praise the King Seiko KSK for its exceptional dial and case finishing, often compared to higher-end brands, and its slim, retro design. The use of the Calibre 6L35 movement in some variants is seen as a significant upgrade, contributing to a refined feel, while others note the bracelet is unusually nice and the case offers a mix of brushed and polished finishes with sharp angles. However, some owners question the value proposition, citing misaligned screws and clasp components on their examples, and the standard 6R movement in some models is criticized as a disappointment for the price point. Accuracy figures range from +15/-10 seconds per day to +5 to +7 seconds per day, and water resistance is rated at 5 BAR or 50 meters. Overall, owners and reviewers find the King Seiko KSK to be a beautiful and classy watch with fantastic finishing, though some are divided on its value and movement choice at its price point.

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