Side by side

Massena LAB Uni-RacervsZelos GT

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

Uni-Racer
Massena LABUni-Racer
MSRP $3,495
GT
ZelosGT
MSRP $499

At a glance

15 of 29 specs differ
Diameter
Uni-Racer39mm
GT42mm
Power Reserve
Uni-Racer58h
GT40h
Water Resistance
Uni-Racer50m
GT100m
MSRP
Uni-Racer$3,495
GT$499

Full specifications

Case

6 specs
Diameter
39mm
42mm
Thickness
9mm
10.8mm
Lug-to-Lug
46mm
42mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

4 specs
Crystal
Acrylic
Sapphire
Crystal Shape
Domed
Flat
AR Coating
No
Inner
Dial Color
White
SS - Azzurro

Movement

4 specs
Caliber
SW510 BH M Elaboré
Miyota 9133
Type
Manual
Automatic
Power Reserve
58h
40h
Jewels
23
25

Pricing

1 specs
MSRP
$3,495
$499

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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.

Massena LAB Uni-Racer

The Massena LAB Uni-Racer is praised for its refined vintage chronograph aesthetic, featuring a 39mm case with unique horizontal finishing, a GPHG-nominated hand-wound Sellita SW510 M movement, and a sector dial with a "big eye" counter. Owners and reviewers highlight its period-perfect Super-LumiNova and snailing on recessed registers, all supported by a 58-hour power reserve and 50m water resistance. On balance, owners and reviewers rate the Massena LAB Uni-Racer highly for its authentic vintage design and refined execution at its price point.

Zelos GT

The Zelos GT is lauded for its value and bold design, with owners highlighting the cool power reserve meter and superb 3-point micro-adjust bracelet. Some owners find the case and lugs could hug the wrist better, and the bracelet is noted as being quite long, requiring significant link removal for a 7.1-inch wrist. The dark green dial, while inspired by Lamborghini, is described as appearing mostly black. Overall, owners rate the Zelos GT highly for its value and the quality of its bracelet at the price point.

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