Lum-Tec Solar MarinevsScurfa M.S.21 Diver One Limited Edition

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Lum-Tec Solar Marine at true scale

Solar Marine

Scurfa M.S.21 Diver One Limited Edition at true scale

M.S.21 Diver One Limited Edition

Diameter

39mm

40mm

Lug-to-Lug

43.5mm

lowest

47.7mm

Thickness

10.7mm

lowest

14.4mm

Water Resistance

300m

500m

highest

MSRP

$463

$264

lowest

Movement

Automatic

Ronda 715SM

Case

5 specs
Diameter
39mm
40mm
Thickness
10.7mm
14.4mm
Lug-to-Lug
43.5mm
47.7mm
Material
316L Stainless Steel (DLC coated)
Titanium
Water Resistance
300m
500m

Crystal & Dial

1 specs
Dial Color
Steel
n/a

Movement

2 specs
Caliber
n/a
Ronda 715SM
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$463
$264
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Lum-Tec Solar Marine

Owners widely praise the Lum-Tec Solar Marine for its all-black diver design, excellent lume, and rugged, tank-like build. This 39mm watch is noted as a great smaller option, fitting a 7-inch wrist perfectly and suitable for extensive water activities. One owner cautions that the PVD coating may wear and chip within a year. On balance, owners rate the Lum-Tec Solar Marine highly for its rugged build and excellent lume in a compact dive watch package.

Scurfa M.S.21 Diver One Limited Edition

Owners and reviewers praise the Scurfa M.S.21 Diver One Limited Edition for its toolish, affordable titanium construction, featuring a fully brushed case, drilled lugs, and a 120-click bezel. The watch is lauded for its excellent lume, with one owner calling it the best they have seen, and the titanium case is highlighted as a game-changer for its warmth and lightweight feel. The Ronda 715SM quartz movement is noted as being the same caliber found in more expensive watches from brands like Tissot and Marathon. Overall, owners and reviewers rate the Scurfa M.S.21 Diver One Limited Edition highly for its exceptional value and practical, robust design.