Side by side

Seiko Prospex LX linevsYema Navygraf Pearl CMM.20

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

Prospex LX line
SeikoProspex LX line
MSRP $6,500
Navygraf Pearl CMM.20
YemaNavygraf Pearl CMM.20
MSRP $1,862

At a glance

15 of 29 specs differ
Diameter
Prospex LX line44.8mm
Navygraf Pearl CMM.2039mm
Power Reserve
Prospex LX line72h
Navygraf Pearl CMM.2040h
Water Resistance
Prospex LX line300m
Navygraf Pearl CMM.20100m
MSRP
Prospex LX line$6,500
Navygraf Pearl CMM.20$1,862

Full specifications

Case

6 specs
Diameter
44.8mm
39mm
Thickness
15.7mm
9.75mm
Lug-to-Lug
50.9mm
46mm
Lug Width
22mm
19mm
Material
Titanium
316L Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Pearl
Lume
LumiBrite on hands and index(es)
None

Movement

4 specs
Caliber
5R65
Yema CMM.20
Type
Spring Drive
Automatic
Power Reserve
72h
40h
Jewels
30
25

Pricing

1 specs
MSRP
$6,500
$1,862

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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 Prospex LX line

Owners widely report the Seiko Prospex LX line's finishing is a step up from other models, with a case that sits well on the wrist, and some praise the green sunburst dial with blue anti-reflective sapphire crystal as phenomenal. However, owners note the high MSRP limited sales, with some desiring smaller cases and a reduced price, and others experienced quality control issues such as detached second hands and peeling DLC coating, leading to concerns about fragility. On balance, owners feel the Seiko Prospex LX line was discontinued due to pricing that alienated its target market, despite its attractive dial.

Yema Navygraf Pearl CMM.20

The Yema Navygraf Pearl CMM.20 is praised for its elegant and slim case design, measuring between 9.5mm and 9.75mm thick, and its unique mother-of-pearl dial and bezel. The watch features functional dive watch elements like 200-meter water resistance and is powered by the in-house CMM.20 micro-rotor movement, which offers a 70-hour power reserve and is adjusted to -3/+7 seconds a day. Overall, reviewers highlight the Yema Navygraf Pearl CMM.20's sophisticated aesthetic and slim profile as its primary strengths.

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