Side by side

Hamilton Jazzmaster Slim AutovsLorier Neptune SIV

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

Jazzmaster Slim Auto
HamiltonJazzmaster Slim Auto
MSRP $825
Neptune SIV
LorierNeptune SIV
MSRP $599

At a glance

10 of 29 specs differ
Diameter
Jazzmaster Slim Auto40mm
Neptune SIV39mm
Power Reserve
Jazzmaster Slim Auto50h
Neptune SIV40h
Water Resistance
Jazzmaster Slim Auto30m
Neptune SIV200m
MSRP
Jazzmaster Slim Auto$825
Neptune SIV$599

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
40mm
39mm
Thickness
8.35mm
Lug-to-Lug
46mm
Lug Width
22mm
20mm
Water Resistance
30m
200m

Crystal & Dial

1 specs
Dial Color
Black
Standard

Movement

2 specs
Caliber
No caliber
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$825
$599

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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.

Hamilton Jazzmaster Slim Auto

The Hamilton Jazzmaster Slim Auto is praised for its elegance, light weight, and impressive leather strap, offering a classy yet engaging aesthetic. Its thin 8mm profile, achieved partly by omitting a seconds hand and utilizing the ETA 2892 movement, contributes to its wearability. However, one owner notes the 44mm case size as being very large, and another finds it less appealing than vintage Hamilton models, though the black dial version is considered better looking. Overall, owners appreciate the Hamilton Jazzmaster Slim Auto for its slim profile and elegant design.

Lorier Neptune SIV

Owners widely praise the Lorier Neptune SIV for its versatile, vintage-inspired design featuring a glossy gilt-style dial and a comfortable, tapered bracelet, noting its affordability reduces wear anxiety. Reviewers and owners alike mention the acrylic crystal as a point of contention, with some preferring sapphire, and one owner finds the bracelet lacks the feel of more expensive options. On balance, owners and reviewers rate the Lorier Neptune SIV highly for its appealing vintage aesthetic and value proposition.

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