Side by side

Nivada Grenchen Antarctic 38mm AutomaticvsSpinnaker Dumas GMT

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

Antarctic 38mm Automatic
Nivada GrenchenAntarctic 38mm Automatic
MSRP $945
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

15 of 29 specs differ
Diameter
Antarctic 38mm Automatic38mm
Dumas GMT44mm
Power Reserve
Antarctic 38mm Automatic36h
Dumas GMT40h
Water Resistance
Antarctic 38mm Automatic200m
Dumas GMT300m
MSRP
Antarctic 38mm Automatic$945
Dumas GMT$399

Full specifications

Case

9 specs
Category
Tool
GMT
Diameter
38mm
44mm
Thickness
10.1mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed + Polished + Satin
Brushed and polished
Water Resistance
200m
300m
Caseback
Display
Solid

Crystal & Dial

2 specs
Dial Color
Brown
Blue
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW200
Seiko NH34A
Power Reserve
36h
40h
Complications
GMT
None

Pricing

1 specs
MSRP
$945
$399

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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 38mm Automatic

Nivada Grenchen Antarctic 38mm Automatic owners widely praise its excellent quality for the price, with reviewers highlighting its authentic tropical dial recreation and attractive 38mm case proportions. Owners report accuracy ranging from +6 to +9 seconds per day, and one reviewer notes the Soprod P024 movement has a 38-hour power reserve. The included rally strap is considered mismatched by one reviewer, and the beige Super-LumiNova on a 35mm variant was described as too yellow. On balance, owners and reviewers rate the Nivada Grenchen Antarctic 38mm Automatic highly for its authentic design and excellent quality at its $750 price point.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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