Side by side

Seiko Prospex SeavsYema Rallygraf Meca-Quartz

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

Prospex Sea
SeikoProspex Sea
MSRP $1,100
Rallygraf Meca-Quartz
YemaRallygraf Meca-Quartz
MSRP $420

At a glance

14 of 29 specs differ
Diameter
Prospex Sea41.3mm
Rallygraf Meca-Quartz39mm
Power Reserve
Prospex Sea72h
Rallygraf Meca-Quartz40h
Water Resistance
Prospex Sea300m
Rallygraf Meca-Quartz50m
MSRP
Prospex Sea$1,100
Rallygraf Meca-Quartz$420

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
41.3mm
39mm
Thickness
12.5mm
11mm
Lug-to-Lug
48.2mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Panda
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

4 specs
Caliber
6R55
Type
Automatic
Quartz
Power Reserve
72h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$1,100
$420

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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

Seiko Prospex Sea models are widely praised for their excellent build quality, value for money, and comfortable wearability, with many appreciating the vintage-inspired designs and robust construction. Owners note the silicone straps are surprisingly comfortable and well-finished, and the Lumibrite lume is excellent. However, some find the 44.3mm size and thickness too large for smaller wrists, though others report the sizing as perfect. The 6R15 movement in some variants offers accuracy around +4 seconds per day with a 50-hour power reserve, while newer movements offer more. Some models are criticized for a bracelet width not matching the case size or a rudimentary clasp for their price point. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its impressive case work and finishing at its price point.

Yema Rallygraf Meca-Quartz

Owners widely praise the Yema Rallygraf Meca-Quartz for its heritage reissue design, small and thin case, and good looks for the price, with some noting exceptional build quality, tactile pushers, and a substantial feel. However, the quartz movement's ticking smoothness and the 24-hour subdial, which functions as an AM/PM indicator rather than a totalizer, are points of criticism for some, leading to perceptions of it being overpriced. Owners report mixed experiences with quality control, with some noting alignment issues, crooked indices, and dial rotation when pushers are depressed, while others report no such issues. On balance, owners appreciate the Yema Rallygraf Meca-Quartz for its distinctive vintage styling and wearability, despite some concerns regarding quality control and the functionality of its subdial.

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