Side by side

Spinnaker Cahill AutomaticvsZelos Comet 39

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

Cahill Automatic
SpinnakerCahill Automatic
MSRP $350
Comet 39
ZelosComet 39
MSRP $2,499

At a glance

11 of 29 specs differ
Diameter
Cahill Automatic42mm
Comet 3939mm
Power Reserve
Cahill Automatic40h
Comet 3940h
Water Resistance
Cahill Automatic200m
Comet 3950m
MSRP
Cahill Automatic$350
Comet 39$2,499

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
42mm
39mm
Thickness
13.7mm
7.6mm
Lug-to-Lug
51mm
39mm
Lug Width
22mm
20mm
Water Resistance
200m
50m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Green
Tantalum LE

Movement

2 specs
Caliber
SII NH35A
ETA/Peseux 7001
Type
Automatic
Manual

Pricing

1 specs
MSRP
$350
$2,499

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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.

Spinnaker Cahill Automatic

Owners widely praise the Spinnaker Cahill Automatic for its attractive vintage-inspired design, comfortable wearability on smaller wrists, and good timekeeping, with one owner specifically noting the large "maxi" indices and NATO strap as highlights. However, some find the lume application uneven and note the use of a mineral crystal. A significant concern raised by one owner is a report of internal component failures and a perceived lack of quality control within the brand. On balance, the Spinnaker Cahill Automatic is well-regarded by owners for its style and value, particularly at specific price points, despite some noted manufacturing inconsistencies.

Zelos Comet 39

Owners widely praise the Zelos Comet 39 for its wearable 39mm size, thin profile under 10mm thanks to its manual-wind Sellita SW215 movement, and its captivating dial with a deep starburst effect. The winding action is described as a joy, and the watch is considered a stunner for its price, blending modern and vintage aesthetics. Some owners note frustration with Zelos's limited production runs leading to quick sell-outs. One owner found the logo childlike, while another experienced strap-rubbing issues with the short lugs, which were resolved with a Milanese bracelet. Overall, owners and reviewers rate the Zelos Comet 39 highly for its excellent value and striking dial design.

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