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

14 of 29 specs differ
Diameter
Prospex Sea Save the Ocean Special Edition43.8mm
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$650
Navygraf CMM.10$1,899

Full specifications

Case

6 specs
Diameter
43.8mm
39mm
Thickness
12.8mm
11mm
Lug-to-Lug
48.7mm
46mm
Lug Width
22mm
19mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Standard
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
4R35
Yema CMM.10
Power Reserve
41h
40h
Jewels
23
25

Pricing

1 specs
MSRP
$650
$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

Owners widely praise the Seiko Prospex Sea Save the Ocean Special Edition for its exceptional and captivating dial designs, often described as a highlight that evokes ocean surfaces with unique textures and color gradients. The watch is frequently noted for its excellent value, with some reviewers comparing its aesthetics to much higher-priced brands. Owners report satisfactory lume and accurate timekeeping, with figures ranging from +5 seconds per day to more precise results. However, some owners and reviewers point to the bracelet clasp as a point of criticism, describing it as underwhelming or flimsy, and some find the watch to be top-heavy. There are also mentions of imperfect day/date wheel alignment and occasional bezel alignment issues on some models within the line. The Seiko Prospex Sea Save the Ocean Special Edition is available in various case sizes, with some owners questioning if certain dimensions are too bulky for daily wear.

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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