Side by side

Longines PRIMALUNAvsYema Wristmaster Slim Small Seconds CMM.29

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

PRIMALUNA
LonginesPRIMALUNA
MSRP $1,950
Wristmaster Slim Small Seconds CMM.29
YemaWristmaster Slim Small Seconds CMM.29
MSRP $2,249

At a glance

20 of 29 specs differ
Diameter
PRIMALUNA30mm
Wristmaster Slim Small Seconds CMM.2939mm
Power Reserve
PRIMALUNA40h
Wristmaster Slim Small Seconds CMM.2940h
Water Resistance
PRIMALUNA30m
Wristmaster Slim Small Seconds CMM.29100m
MSRP
PRIMALUNA$1,950
Wristmaster Slim Small Seconds CMM.29$2,249

Full specifications

Case

7 specs
Diameter
30mm
39mm
Thickness
8.3mm
9mm
Lug-to-Lug
37mm
Lug Width
7mm
20mm
Finish
Brushed and polished
Water Resistance
30m
100m
Caseback
Transparent case back with sapphire crystal
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Both sides
Inner
Dial Color
Blue
Black
Indices
Diamond indexes
Applied
Lume
Super-LumiNova
None

Movement

7 specs
Caliber
L257.2
Yema CMM.29
Type
Quartz
Automatic
Beat Rate
25,200 vph
28,800 vph
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Hours, minutes, seconds and date
None

Pricing

1 specs
MSRP
$1,950
$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.

Longines PRIMALUNA

Owners widely praise the Longines PRIMALUNA for its attractive style and understated 26.5mm size, with some preferring the automatic for its craftsmanship and heirloom quality. The redesigned 34mm model features an automatic movement, date complication, and polished case design, available in steel or bi-metal with various dial and strap options. Accuracy averages a loss of 1.3 seconds per day across six positions, running 3-4 seconds slower on the wrist, which is within COSC standards. Prices range from EUR 2,850 to EUR 6,600. Overall, owners rate the Longines PRIMALUNA highly for its appealing design and reliable automatic movement.

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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