Side by side

Tissot Le Locle Open HeartvsYema Navygraf CMM.10

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

Le Locle Open Heart
TissotLe Locle Open Heart
MSRP $995
Navygraf CMM.10
YemaNavygraf CMM.10
MSRP $1,899

At a glance

12 of 29 specs differ
Diameter
Le Locle Open Heart39.3mm
Navygraf CMM.1039mm
Power Reserve
Le Locle Open Heart80h
Navygraf CMM.1040h
Water Resistance
Le Locle Open Heart30m
Navygraf CMM.10100m
MSRP
Le Locle Open Heart$995
Navygraf CMM.10$1,899

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
39.3mm
39mm
Thickness
9.75mm
11mm
Lug-to-Lug
39.3mm
46mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
30m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Silver
Standard
Indices
Roman
Applied

Movement

2 specs
Caliber
11 1/2'''
Yema CMM.10
Power Reserve
80h
40h

Pricing

1 specs
MSRP
$995
$1,899

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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.

Tissot Le Locle Open Heart

Owners widely praise the Tissot Le Locle Open Heart for its elegant aesthetic, featuring a guilloché dial and Roman numerals, and appreciate its practical 80-hour power reserve and Nivachron hairspring. The watch is also noted for offering dual bracelet and strap options, along with a see-through case back. However, one owner flags negative community feedback regarding the comfort of the synthetic leather strap. Overall, owners rate the Tissot Le Locle Open Heart highly for its attractive design and impressive technical specifications at its price point.

Yema Navygraf CMM.10

Owners widely report quality control concerns and suspect craftsmanship with the Yema Navygraf, with one user noting crooked text. A reviewer praised the Slim CMM.20 Limited Edition for its stylish, slim profile and classy finishing on a black lacquered enamel dial, though the audible micro-rotor spinning at its price point was a surprise. On balance, the consensus is that while the Yema Navygraf offers a stylish design, potential buyers should be aware of reported quality control issues.

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