Side by side

Lum-Tec Solar MarinevsTissot Le Locle Open Heart

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

Solar Marine
Lum-TecSolar Marine
MSRP $463
Le Locle Open Heart
TissotLe Locle Open Heart
MSRP $995

At a glance

12 of 29 specs differ
Diameter
Solar Marine39mm
Le Locle Open Heart39.3mm
Power Reserve
Solar Marine40h
Le Locle Open Heart80h
Water Resistance
Solar Marine300m
Le Locle Open Heart30m
MSRP
Solar Marine$463
Le Locle Open Heart$995

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
39mm
39.3mm
Thickness
10.7mm
9.75mm
Lug-to-Lug
43.5mm
39.3mm
Lug Width
20mm
19mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
300m
30m

Crystal & Dial

2 specs
Dial Color
Steel
Silver
Indices
Applied
Roman

Movement

2 specs
Caliber
11 1/2'''
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$463
$995

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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.

Tissot Le Locle Open Heart

Owners widely praise the Tissot Le Locle Open Heart for its elegant aesthetic, featuring a guilloché dial and Roman numerals, and appreciate its practical 80-hour power reserve and Nivachron hairspring. The watch is also noted for offering dual bracelet and strap options, along with a see-through case back. However, one owner flags negative community feedback regarding the comfort of the synthetic leather strap. Overall, owners rate the Tissot Le Locle Open Heart highly for its attractive design and impressive technical specifications at its price point.

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