Side by side

Seiko 5 Sports Field seriesvsYema Navygraf CMM.10

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

5 Sports Field series
Seiko5 Sports Field series
MSRP $315
Navygraf CMM.10
YemaNavygraf CMM.10
MSRP $1,899

At a glance

14 of 29 specs differ
Diameter
5 Sports Field series39.4mm
Navygraf CMM.1039mm
Power Reserve
5 Sports Field series41h
Navygraf CMM.1040h
Water Resistance
5 Sports Field series100m
Navygraf CMM.10100m
MSRP
5 Sports Field series$315
Navygraf CMM.10$1,899

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
39.4mm
39mm
Thickness
13.2mm
11mm
Lug-to-Lug
48.1mm
46mm
Lug Width
20mm
19mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

4 specs
Crystal
Hardlex
Domed Sapphire
Crystal Shape
Curved
Flat
Dial Color
Black
Standard
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
4R36
Yema CMM.10
Power Reserve
41h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$315
$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.

Seiko 5 Sports Field series

The Seiko 5 Sports Field series is praised for its value, offering an accessible explorer-style watch with a GMT complication and excellent legibility thanks to LumiBrite on the dial and bezel. The watches feature a 41mm stainless steel case, 100m water resistance, and are powered by either the 4R36 or 4R34 movement, both with a 41-hour power reserve. One reviewer notes the inclusion of a compass bezel with a lumed pearl and fully lumed Arabic numerals on the dial for the non-GMT models. Overall, reviewers consider the Seiko 5 Sports Field GMT models good value under 500 euros.

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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