Side by side

Seiko MonstervsYema Granvelle CMM.29

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

Monster
SeikoMonster
MSRP $550
Granvelle CMM.29
YemaGranvelle CMM.29
MSRP $1,913

At a glance

12 of 29 specs differ
Diameter
Monster42.4mm
Granvelle CMM.2939mm
Power Reserve
Monster41h
Granvelle CMM.2940h
Water Resistance
Monster200m
Granvelle CMM.2950m
MSRP
Monster$550
Granvelle CMM.29$1,913

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
42.4mm
39mm
Thickness
13.4mm
8.6mm
Lug-to-Lug
49.4mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
50m

Crystal & Dial

2 specs
Crystal
Hardlex
Sapphire
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
4R36
Yema CMM.29
Power Reserve
41h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$550
$1,913

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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 Monster

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many noting its comfortable wearability. Reviewers consistently highlight its impressive finishing and classic dive watch design, often comparing it favorably to older models. Some owners find the size substantial, with one noting it as big, thick, and heavy on a 6.5-inch wrist, while others find it perfect. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional value and robust, classic dive watch design.

Yema Granvelle CMM.29

Owners praise the Yema Granvelle CMM.29's gorgeous dial, noting its guilloché pattern and carved hour indices that catch the light. One owner describes the movement as a "feast for the eyes" but finds the watch frustrating at work due to its lack of a specific function. On balance, owners appreciate the Yema Granvelle CMM.29 for its visually striking dial and movement finishing, with some finding its utility limited in certain professional contexts.

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