Side by side

Seiko Prospex LX linevsYema Wristmaster Slim Small Seconds CMM.29

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

Prospex LX line
SeikoProspex LX line
MSRP $5,500
Wristmaster Slim Small Seconds CMM.29
YemaWristmaster Slim Small Seconds CMM.29
MSRP $2,249

At a glance

14 of 29 specs differ
Diameter
Prospex LX line44.8mm
Wristmaster Slim Small Seconds CMM.2939mm
Power Reserve
Prospex LX line72h
Wristmaster Slim Small Seconds CMM.2940h
Water Resistance
Prospex LX line200m
Wristmaster Slim Small Seconds CMM.29100m
MSRP
Prospex LX line$5,500
Wristmaster Slim Small Seconds CMM.29$2,249

Full specifications

Case

7 specs
Category
GMT
Dress
Diameter
44.8mm
39mm
Thickness
14.7mm
9mm
Lug-to-Lug
50.9mm
Lug Width
22mm
20mm
Material
Titanium
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

2 specs
AR Coating
Super-clear coating
Inner
Lume
LumiBrite on hands and index(es)
None

Movement

4 specs
Caliber
5R66
Yema CMM.29
Type
Spring Drive
Automatic
Power Reserve
72h
40h
Jewels
30
25

Pricing

1 specs
MSRP
$5,500
$2,249

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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 dial's blue-green sunburst is phenomenal, and the sapphire glass features blue AR coating. Some owners feel the high price limits discounts and sales, with one AD noting extremely low sales due to the cost. One owner reported DLC peeling off a two-week-old watch, and another noted quality control issues like bezel inserts and fallen second hands. On balance, owners consider the Seiko Prospex LX line a nicely built watch, though pricing led to poor sales and its discontinuation.

Yema Wristmaster Slim Small Seconds CMM.29

Owners widely praise the Yema Wristmaster Slim Small Seconds CMM.29 for its slim 9.5mm case, unique nature-inspired dial, and brushed steel finish. The micro-rotor movement is noted for its 4Hz beat rate and 42-hour power reserve, regulated to -/+ 10 seconds per day. Some owners report concerns regarding the movement and warranty process, while a reviewer questioned the value proposition at its price point and noted minor finishing inconsistencies on a prototype. On balance, the Yema Wristmaster Slim Small Seconds CMM.29 is highly regarded by owners for its distinctive design and comfortable wearability.

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