Hamilton Jazzmaster Maestro Auto ChronovsLouis Erard 2300 Sport Chronograph

lug2lug doesn't sell watches. Buy links open the brand's or seller's own site. Some links are affiliate links: lug2lug may earn a commission at no extra cost to you. Disclosures

Measurements

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

Hamilton Jazzmaster Maestro Auto Chrono at true scale

Jazzmaster Maestro Auto Chrono

Louis Erard 2300 Sport Chronograph at true scale

2300 Sport Chronograph

Diameter

45mm

44mm

Thickness

15.3mm

n/a

Water Resistance

100m

highest

50m

Power Reserve

60h

highest

48h

MSRP

$1,995

lowest

$4,146

Movement

Hamilton H-21

Valjoux 7750

Case

5 specs
Diameter
45mm
44mm
Thickness
15.35mm
n/a
Lug Width
23mm
n/a
Material
Stainless Steel
Titanium
Water Resistance
100m
50m

Crystal & Dial

1 specs
Dial Color
Blue
n/a

Movement

2 specs
Caliber
Hamilton H-21
Valjoux 7750
Power Reserve
60h
48h

Pricing

1 specs
MSRP
$1,995
$4,146
Keep your wishlist and collection together in the appExplore the app

Reviews

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's premium case finishing and versatile dial layout, suitable for both casual and formal wear. Some owners note the 45mm size can be bulky and may not fit under shirt cuffs, and a lack of a second hand is a deal-breaker for some. Accuracy figures range from gaining about 5 seconds per day to keeping time within 10 seconds per day even after many years without service. Concerns exist regarding the serviceability and potential maintenance costs of the H-21 movement. Overall, owners rate the Hamilton Jazzmaster Maestro Auto Chrono highly for its substantial build quality and attractive design despite some size and movement serviceability considerations.

From video reviewers

The Valjoux 7750 chronograph movement is cited as a strength. Reviewers noted the movement is not without flaws.

Louis Erard 2300 Sport Chronograph

Owners and reviewers highlight the Louis Erard 2300 Sport Chronograph's lightweight titanium case with satin finishing and polished bevels, which makes its 44mm size feel less cumbersome. The watch is noted for its retro-modern aesthetic and unique dial designs, with one owner appreciating the addition of a moon phase complication and its practical alternative to a dress watch. Reviewers point out that its 50m water resistance lags behind modern alternatives, and one found the rainbow minute track too subtle. Overall, owners and reviewers rate the Louis Erard 2300 Sport Chronograph well for its distinctive design and comfortable wearability in titanium at its price point.

Similar watches

Matched to the watches above on size, movement, style and price, microbrands first. Open any one to dig in.

DiscussionNot started

Also compared

Comparisons nearby in the catalog: alternatives to the watches above paired against the matchup.