Side by side

Seiko Prospex Sea Save the Ocean Special EditionvsYema Navygraf CMM.10

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

Navygraf CMM.10
YemaNavygraf CMM.10
MSRP $1,899

At a glance

13 of 29 specs differ
Diameter
Prospex Sea Save the Ocean Special Edition42.4mm
Navygraf CMM.1039mm
Power Reserve
Prospex Sea Save the Ocean Special Edition41h
Navygraf CMM.1040h
Water Resistance
Prospex Sea Save the Ocean Special Edition200m
Navygraf CMM.10100m
MSRP
Prospex Sea Save the Ocean Special Edition$550
Navygraf CMM.10$1,899

Full specifications

Case

6 specs
Diameter
42.4mm
39mm
Thickness
13.4mm
11mm
Lug-to-Lug
49.4mm
46mm
Lug Width
20mm
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Hardlex
Domed Sapphire
Dial Color
Black
Standard
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
4R36
Yema CMM.10
Power Reserve
41h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$550
$1,899

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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 Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its visually striking and unique dial designs, often described as a standout feature offering significant aesthetic appeal for the price. Owners and reviewers consistently highlight the attractive blue gradients, wave patterns, and textured finishes that evoke ocean depths. The watch is generally considered comfortable to wear, with a well-proportioned case size and good build quality. Accuracy is reported as around +5 seconds per day by one owner. However, several sources point to the bracelet and clasp as a weak point, with criticisms including pin-and-collar construction, stamped clasps, and a lack of a convenient diver's extension. Some reviewers also note potential issues with bezel alignment and day/date wheel alignment. On balance, owners and reviewers rate the Seiko Prospex Sea Save the Ocean Special Edition highly for its exceptional dial design and overall value.

Yema Navygraf CMM.10

Owners widely report quality control concerns and suspect craftsmanship with the Yema Navygraf, with one user noting crooked text. A reviewer praised the Slim CMM.20 Limited Edition for its stylish, slim profile and classy finishing on a black lacquered enamel dial, though the audible micro-rotor spinning at its price point was a surprise. On balance, the consensus is that while the Yema Navygraf offers a stylish design, potential buyers should be aware of reported quality control issues.

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