Side by side

Seiko 5 Sports Field seriesvsYema Wristmaster Slim Small Seconds CMM.29

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 $450
Wristmaster Slim Small Seconds CMM.29
YemaWristmaster Slim Small Seconds CMM.29
MSRP $2,249

At a glance

11 of 29 specs differ
Diameter
5 Sports Field series39.4mm
Wristmaster Slim Small Seconds CMM.2939mm
Power Reserve
5 Sports Field series41h
Wristmaster Slim Small Seconds CMM.2940h
Water Resistance
5 Sports Field series100m
Wristmaster Slim Small Seconds CMM.29100m
MSRP
5 Sports Field series$450
Wristmaster Slim Small Seconds CMM.29$2,249

Full specifications

Case

4 specs
Category
GMT
Dress
Diameter
39.4mm
39mm
Thickness
13.6mm
9mm
Lug-to-Lug
47.9mm

Crystal & Dial

3 specs
Crystal
Hardlex
Sapphire
Crystal Shape
Curved
Flat
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
4R34
Yema CMM.29
Power Reserve
41h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$450
$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 5 Sports Field series

The Seiko 5 Sports Field series offers an accessible explorer-style watch with a 41mm stainless steel case, 100m water resistance, and a Hardlex crystal. The Field GMT model features a caller GMT complication powered by the 4R34 movement, while the standard Field models use the 4R36 with a 41-hour power reserve. Both models include Arabic numerals coated in LumiBrite and a lumed pearl on the bezel. On balance, the Seiko 5 Sports Field GMT is a well-regarded entry-level explorer watch for its price point, despite its office-style GMT function.

From video reviewers

The prominent five-sided GMT hand enhances legibility and adds a sophisticated aesthetic to the watch. The Seiko 5 Sports Field series offers similar functionality to the Explorer 2 at a lower price, making it a valuable option. Reviewers disagree on whether it's a missed opportunity for Seiko to release this model first, with one reviewer implying it would have been a more logical addition to their lineup.

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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