Side by side

Nivada Grenchen DepthmastervsZelos Spearfish GMT

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

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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 Depthmaster

Owners widely report terrific build quality and a feel similar to the 1960s original, with some appreciating its reasonable lug-to-lug and better-than-expected appearance in person. The compact 39mm case is praised for its wearability, especially on smaller wrists, and offers impressive 1,000m water resistance. However, the Soprod P024 movement's 38-hour power reserve is a point of criticism, as is a bezel that can be difficult to grip and weak lume. Some owners find the watch wears on the smaller side, and the date complication is seen by one owner as detracting from the design. The "Pacman" variant is noted as polarizing, with one owner questioning their purchase, while the "Ghost Purple" variant's 30 and 45 numerals are described as having a rushed aesthetic. Overall, owners and reviewers rate the Nivada Grenchen Depthmaster highly for its faithful reissue, impressive water resistance, and comfortable wearability at a competitive price.

Zelos Spearfish GMT

The Zelos Spearfish GMT is widely praised for its exceptional value, with reviewers highlighting its superb finishing, flawless machining, and a tool-less micro-adjustment clasp that exceeds its price point. It features a La Joux-Perret G100 movement with a 68-hour power reserve, achieving an average accuracy of +2.6 seconds per day, or a Miyota 9075 movement offering flier-style GMT functionality. The 40mm case and bidirectional 48-click ceramic bezel are well-executed, though one reviewer noted a minor compromise in the end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and value proposition.

From video reviewers

The bezel action is a strong point. The bracelet quality is a weakness. Reviewers disagreed on the dial material, with some mentioning aventurine and others meteorite.

At a glance

12 of 29 specs differ
Diameter
Depthmaster39mm
Spearfish GMT40mm
Power Reserve
Depthmaster38h
Spearfish GMT
Water Resistance
Depthmaster1,000m
Spearfish GMT200m
MSRP
Depthmaster$1,050
Spearfish GMT$999

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
39mm
40mm
Lug-to-Lug
39mm
40mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
1000m
200m
Caseback
Stainless Steel 316

Crystal & Dial

2 specs
Dial Color
Black
Frost
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW200-1
Sellita SW330-2
Power Reserve
38h
0h
Complications
GMT
None

Pricing

1 specs
MSRP
$1,050
$999
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