Side by side

Hamilton Jazzmaster Maestro Auto ChronovsZelos Spearfish 3

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

Jazzmaster Maestro Auto Chrono
HamiltonJazzmaster Maestro Auto Chrono
MSRP $2,275
Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

11 of 29 specs differ
Diameter
Jazzmaster Maestro Auto Chrono41mm
Spearfish 340mm
Power Reserve
Jazzmaster Maestro Auto Chrono60h
Spearfish 340h
Water Resistance
Jazzmaster Maestro Auto Chrono100m
Spearfish 3200m
MSRP
Jazzmaster Maestro Auto Chrono$2,275
Spearfish 3$749

Full specifications

Case

7 specs
Category
Chronograph
Diver
Diameter
41mm
40mm
Thickness
15.1mm
11.5mm
Lug-to-Lug
46mm
40mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

1 specs
Dial Color
Silver
Diver - Forged Carbon

Movement

2 specs
Caliber
H-21
La Joux-Perret G100
Power Reserve
60h
40h

Pricing

1 specs
MSRP
$2,275
$749

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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 Maestro Auto Chrono

Owners widely praise the Hamilton Jazzmaster Maestro Auto Chrono for its dramatic quality and attention to detail, with its versatile design suitable for dressing up or down. Timekeeping is generally good, with one owner reporting gains of no more than 5 seconds per day, and another noting their 7750-based movement has kept time within 10 seconds per day even after 15 years without service. Some owners find the lack of a second hand a dealbreaker, and the 45mm size may not fit comfortably under sleeves. Concerns exist regarding potentially high maintenance costs and intervals. Overall, owners rate the Hamilton Jazzmaster Maestro Auto Chrono highly for its bulletproof build and classic, dressy appearance at an accessible price point.

Zelos Spearfish 3

The Zelos Spearfish 3 is widely praised for its exceptional finishing, with razor-sharp polish and flawless brushed transitions that owners feel exceed its price point. The 40mm case is noted for its wearability, and the La Joux-Perret G100 movement offers a 68-hour power reserve, with reported accuracy averaging +2.6 seconds per day. Reviewers highlight the exceptionally smooth bi-directional bezel and a tool-less micro-adjustment clasp described as best-in-class among microbrands. The sapphire sandwich construction and lumed bezel are also cited as desirable features. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and value at its price point.

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