Side by side

Hamilton Jazzmaster Open Heart AutovsVario 1918 Medic Brass

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

Jazzmaster Open Heart Auto
HamiltonJazzmaster Open Heart Auto
MSRP $2,695
1918 Medic Brass
Vario1918 Medic Brass
MSRP $388

At a glance

11 of 29 specs differ
Diameter
Jazzmaster Open Heart Auto36mm
1918 Medic Brass40mm
Power Reserve
Jazzmaster Open Heart Auto80h
1918 Medic Brass40h
Water Resistance
Jazzmaster Open Heart Auto50m
1918 Medic Brass100m
MSRP
Jazzmaster Open Heart Auto$2,695
1918 Medic Brass$388

Full specifications

Case

6 specs
Category
Chronograph
Field
Diameter
36mm
40mm
Lug-to-Lug
46mm
48mm
Lug Width
18mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Mother of pearl
White

Movement

2 specs
Caliber
H-10
Seiko NH38A
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$2,695
$388

Follow this matchup

Get a note when Hamilton Jazzmaster Open Heart Auto vs Vario 1918 Medic Brass gets more votes, a community discussion, or a price drop. No account needed.

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 Open Heart Auto

The Hamilton Jazzmaster Open Heart Auto is noted for its dressy yet versatile design, featuring striking gradient dials and intricately shaped cutouts that reveal the H-10 movement. It boasts an 80-hour power reserve and Nivachron hairspring. The watch is available in 36mm, 40mm, or 42mm stainless steel cases. On balance, the Hamilton Jazzmaster Open Heart Auto is appreciated for its visually engaging dial and movement display at its price point.

From video reviewers

The smoked dial's precision cutouts offer a captivating view of the automatic movement. Legibility is compromised by the open-heart design.

Vario 1918 Medic Brass

Owners widely praise the Vario 1918 Medic Brass for its crisp enamel dial, easy-to-read numerals, and cathedral hands, noting the brass case develops an attractive patina over time. However, the soft brass scratches easily, and one owner found the lume to be poor. Accuracy varies, with one example running slow by about 10 seconds per day and another owner deeming the Miyota 82s5 movement just okay. On balance, owners rate the Vario 1918 Medic Brass highly for its unique dial and the evolving character of its brass case.

Keep exploring

More watches worth a look

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

Adjacent matchups

People also compared

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