Side by side

Nivada Grenchen Antarctic Diver AquamarvsSpinnaker Dumas GMT

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

Antarctic Diver Aquamar
Nivada GrenchenAntarctic Diver Aquamar
MSRP $1,050
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

16 of 29 specs differ
Diameter
Antarctic Diver Aquamar38mm
Dumas GMT44mm
Power Reserve
Antarctic Diver Aquamar38h
Dumas GMT40h
Water Resistance
Antarctic Diver Aquamar200m
Dumas GMT300m
MSRP
Antarctic Diver Aquamar$1,050
Dumas GMT$399

Full specifications

Case

8 specs
Category
Diver
GMT
Diameter
38mm
44mm
Thickness
12.9mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
16mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m
Caseback
Solid screw-down
Solid

Crystal & Dial

3 specs
AR Coating
Underside
Inner
Dial Color
Black
Blue
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Sellita SW200
Seiko NH34A
Beat Rate
4 vph
28,800 vph
Power Reserve
38h
40h
Complications
GMT
None

Pricing

1 specs
MSRP
$1,050
$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 Diver Aquamar

The Nivada Grenchen Antarctic Diver Aquamar is widely praised for its innovative changeable lume feature, allowing users to switch between white and beige lume via a disc tied to the date mechanism. Owners appreciate its 38mm stainless steel case and sandwich dial, available in blue, black, or grey. One reviewer notes that legibility on the grey dial may be a concern, and the hands' lume color is fixed. The watch is powered by a Soprod P024 movement with a 38-hour power reserve, which some owners have reservations about, though it is considered good value at $1,050. On balance, owners and reviewers rate the Nivada Grenchen Antarctic Diver Aquamar highly for its unique lume complication and overall value proposition.

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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