Side by side

Boldr Expedition EnigmathvsNivada Grenchen Antarctic Spider

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

Expedition Enigmath
BoldrExpedition Enigmath
MSRP $599
Antarctic Spider
Nivada GrenchenAntarctic Spider
MSRP $945

At a glance

10 of 29 specs differ
Diameter
Expedition Enigmath41mm
Antarctic Spider38mm
Power Reserve
Expedition Enigmath42h
Antarctic Spider38h
Water Resistance
Expedition Enigmath200m
Antarctic Spider200m
MSRP
Expedition Enigmath$599
Antarctic Spider$945

Full specifications

Case

4 specs
Diameter
41mm
38mm
Thickness
12.8mm
11.1mm
Lug-to-Lug
47.5mm
46mm
Finish
Brushed and polished
Brushed + Polished

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Enigmath Coconino
White

Movement

3 specs
Caliber
Miyota 9039,
Sellita SW200
Power Reserve
42h
38h
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$599
$945

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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.

Boldr Expedition Enigmath

The watch's slide rule function is a convenient feature, allowing for calculations on the go. One potential drawback is the use of the Japanese Miyota 9039 movement, which may be a trade-off for some buyers. Reviewers disagree on whether the quick 'on the fly' adjust bracelet is a more significant advantage than the watch's sapphire crystal for durability and scratch resistance.

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.

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