Side by side

Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited EditionvsYema Wristmaster Slim Small Seconds CMM.29

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

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

At a glance

11 of 29 specs differ
Diameter
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition42mm
Wristmaster Slim Small Seconds CMM.2939mm
Power Reserve
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition72h
Wristmaster Slim Small Seconds CMM.2940h
Water Resistance
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition300m
Wristmaster Slim Small Seconds CMM.29100m
MSRP
Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition$1,750
Wristmaster Slim Small Seconds CMM.29$2,249

Full specifications

Case

5 specs
Category
Diver
Dress
Diameter
42mm
39mm
Thickness
13.3mm
9mm
Lug-to-Lug
48.6mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
6R54
Yema CMM.29
Power Reserve
72h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$1,750
$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 Sea 1968 Heritage Diver's GMT Watch Limited Edition

The Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition is widely praised for its excellent quality and finishing relative to its price point, featuring a beautiful case, bracelet, and strong Lumibrite lume. Enthusiasts and reviewers highlight the comfortable 42mm case size and the distinctive 4 o'clock crown position. The watch is powered by the in-house 6R54 automatic movement, offering a 72-hour power reserve and rated accuracy of -5/+10 seconds per day, though one source notes the GMT function is secondary. Some find the 4:30 date window divisive, and the bezel clicks are described as quieter than expected. On balance, owners and reviewers rate the Seiko Prospex Sea 1968 Heritage Diver's GMT Watch Limited Edition highly for its refined design and strong value proposition.

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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