Alsta SuperautomaticvsMarnaut Safe Harbour 100C Safe Harbour Classic 100 (cushion case, multi-subdial complication, applied batons)

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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.

Alsta Superautomatic at true scale

Superautomatic

Marnaut Safe Harbour 100C Safe Harbour Classic 100 (cushion case, multi-subdial complication, applied batons) at true scale

Safe Harbour 100C Safe Harbour Classic 100 (cushion case, multi-subdial complication, applied batons)

Diameter

38mm

39mm

Lug-to-Lug

43mm

lowest

45mm

Thickness

13.2mm

13mm

lowest

Water Resistance

300m

highest

100m

Power Reserve

38h

41h

highest

MSRP

$1,435

$1,042

lowest

Movement

Sellita SW200-1

Sellita SW200-1

Case

4 specs
Diameter
38mm
39mm
Thickness
13.2mm
13mm
Lug-to-Lug
43mm
45mm
Water Resistance
300m
100m

Crystal & Dial

1 specs
Lume
Super-LumiNova
None

Movement

1 specs
Power Reserve
38h
41h

Pricing

1 specs
MSRP
$1,435
$1,042
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Reviews

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

Alsta Superautomatic

The Alsta Superautomatic is praised for its excellent retro 70s dive watch design and connection to the movie Jaws, with reviewers noting its contrasting case finishes and comfortable Tropic strap. Owners are split on its value, with some finding it egregiously overpriced at MSRP but a fun summer piece around $500-600, while others acknowledge collector hesitation due to the Sellita SW200-1 movement. The bracelet's execution is criticized for poor detailing and less crisp machining, and the bezel lacks lume. On balance, owners and reviewers appreciate the Alsta Superautomatic for its vintage-inspired design and Jaws movie connection, despite some reservations about its price and bracelet finishing.

From video reviewers

The Alsta Superautomatic offers excellent value for its price point. Reviewers noted that the lume is on par with Seiko.

Marnaut Safe Harbour 100C Safe Harbour Classic 100 (cushion case, multi-subdial complication, applied batons)

The Marnaut Safe Harbour 100C Safe Harbour Classic 100 (cushion case, multi-subdial complication, applied batons) is praised for its well-executed finishing, signed crown, and domed sapphire crystal. Owners note the 39mm tonneau case is ideal for everyday wear, though its 13.2mm thickness is somewhat concealed by the curved mid-case and sapphire crystal. The glossy lacquered dial with applied indices is a point of discussion, with some finding the busy design and slender handset can make legibility challenging. The initial stiffness of the faux-croc leather strap is noted, but the 20mm lug width allows for easy customization. On balance, owners and reviewers appreciate the Marnaut Safe Harbour 100C Safe Harbour Classic 100 (cushion case, multi-subdial complication, applied batons) for its robust build quality and comfortable wearability at its price point.

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