Side by side

Longines PRIMALUNAvsZelos Spearfish 3

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

PRIMALUNA
LonginesPRIMALUNA
MSRP $1,700
Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

22 of 29 specs differ
Diameter
PRIMALUNA30mm
Spearfish 340mm
Power Reserve
PRIMALUNA40h
Spearfish 340h
Water Resistance
PRIMALUNA30m
Spearfish 3200m
MSRP
PRIMALUNA$1,700
Spearfish 3$749

Full specifications

Case

9 specs
Category
Dress
Diver
Diameter
30mm
40mm
Thickness
8mm
11.5mm
Lug-to-Lug
37mm
40mm
Lug Width
7mm
20mm
Material
Stainless Steel
316L Stainless Steel
Finish
Brushed and polished
Water Resistance
30m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Mother of Pearl
Diver - Forged Carbon
Indices
Diamond indexes
Applied
Lume
Super-LumiNova
None

Movement

7 specs
Caliber
L152.3
La Joux-Perret G100
Type
Quartz
Automatic
Beat Rate
25,200 vph
28,800 vph
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Hours, minutes, seconds and date
None

Pricing

1 specs
MSRP
$1,700
$749

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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.

Longines PRIMALUNA

Owners widely praise the Longines PRIMALUNA for its attractive style and understated 26.5mm size, with the automatic version favored for its smooth sweep. The redesigned 34mm model features a fluid, polished case, available in steel or bi-metal, with dial options including mother-of-pearl. The automatic movement, Caliber L899, demonstrates consistent accuracy averaging a loss of 1.3 seconds per day across six positions and 3-4 seconds per day on the wrist, performing within COSC standards. The automatic movement offers a 72-hour power reserve. On balance, owners and reviewers highly regard the Longines PRIMALUNA for its blend of classic aesthetics and contemporary design updates, particularly appreciating the automatic movement's performance and the watch's overall stylish appeal.

Zelos Spearfish 3

The Zelos Spearfish 3 is widely praised for its exceptional finishing, with razor-sharp polish and flawless brushed transitions that owners feel exceed its price point. The 40mm case is noted for its wearability, and the La Joux-Perret G100 movement offers a 68-hour power reserve, with reported accuracy averaging +2.6 seconds per day. Reviewers highlight the exceptionally smooth bi-directional bezel and a tool-less micro-adjustment clasp described as best-in-class among microbrands. The sapphire sandwich construction and lumed bezel are also cited as desirable features. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and value at its price point.

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