Side by side

Lum-Tec Solar MarinevsSpinnaker Cahill Automatic

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

Solar Marine
Lum-TecSolar Marine
MSRP $463
Cahill Automatic
SpinnakerCahill Automatic
MSRP $350

At a glance

9 of 29 specs differ
Diameter
Solar Marine39mm
Cahill Automatic42mm
Power Reserve
Solar Marine40h
Cahill Automatic40h
Water Resistance
Solar Marine300m
Cahill Automatic200m
MSRP
Solar Marine$463
Cahill Automatic$350

Full specifications

Case

6 specs
Diameter
39mm
42mm
Thickness
10.7mm
13.7mm
Lug-to-Lug
43.5mm
51mm
Lug Width
20mm
22mm
Material
316L Stainless Steel (DLC coated)
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

1 specs
Dial Color
Steel
Green

Movement

1 specs
Caliber
SII NH35A

Pricing

1 specs
MSRP
$463
$350

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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.

Lum-Tec Solar Marine

Lum-Tec Solar Marine owners praise its all-black diver design, excellent lume, and rugged, tank-like build. One owner finds it a perfect fit for a 7-inch wrist and the most frequently worn watch despite its smaller size. However, one owner cautions that the PVD coating will wear and chip within a year, impacting its appearance, and another finds the price high for a solar quartz watch with added lume. On balance, owners rate the Lum-Tec Solar Marine highly for its robust design and excellent lume, despite concerns about PVD durability and value proposition.

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.

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