Side by side

Nivada Grenchen Chronomaster ValjouxvsSpinnaker Dumas GMT

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

Chronomaster Valjoux
Nivada GrenchenChronomaster Valjoux
MSRP $5,000
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

16 of 29 specs differ
Diameter
Chronomaster Valjoux38mm
Dumas GMT44mm
Power Reserve
Chronomaster Valjoux48h
Dumas GMT40h
Water Resistance
Chronomaster Valjoux100m
Dumas GMT300m
MSRP
Chronomaster Valjoux$5,000
Dumas GMT$399

Full specifications

Case

9 specs
Category
Chronograph
GMT
Diameter
38mm
44mm
Thickness
12.95mm
15mm
Lug-to-Lug
46.5mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed + Polished
Brushed and polished
Water Resistance
100m
300m
Caseback
316L Steel Silver Color Open Case back with Sapphire Glass
Solid

Crystal & Dial

2 specs
Dial Color
Black
Blue
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Valjoux 23
Seiko NH34A
Type
Manual
Automatic
Power Reserve
48h
40h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$5,000
$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 Chronomaster Valjoux

The Nivada Grenchen Chronomaster is praised for its vintage aesthetic and versatility, with the Aventurine Blue variant offering a unique starry dial and world time bezel. Owners note the sub-dials are small and difficult to read, and the Sellita SW510 movement exhibits rotor wobble and hand play. The $5,000 price point is a significant increase from previous reissues. Overall, owners rate the Nivada Grenchen Chronomaster highly for its vintage aesthetic and unique dial options, despite some concerns about sub-dial legibility and movement characteristics.

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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