Side by side

Lum-Tec Solar MarinevsGruppo Gamma Field III

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

Solar Marine
Lum-TecSolar Marine
MSRP $463
Field III
Gruppo GammaField III
MSRP $439

At a glance

13 of 29 specs differ
Diameter
Solar Marine39mm
Field III40mm
Power Reserve
Solar Marine40h
Field III41h
Water Resistance
Solar Marine300m
Field III200m
MSRP
Solar Marine$463
Field III$439

Full specifications

Case

7 specs
Category
Diver
Field
Diameter
39mm
40mm
Thickness
10.7mm
14mm
Lug-to-Lug
43.5mm
48.5mm
Lug Width
20mm
22mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Steel
Black
Lume
None
Super-LumiNova

Movement

2 specs
Caliber
Seiko Instruments NH38A
Power Reserve
40h
41h

Pricing

1 specs
MSRP
$463
$439

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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.

Gruppo Gamma Field III

The watch's 200m water resistance is a notable strength. A weakness is the use of the Seiko NH34A GMT movement, which might be considered less desirable than some other options due to its relatively lower grade compared to other movements in this price range.

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