Side by side

Seiko Prospex SeavsYema Rallygraf Alpine Cup Series

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

Prospex Sea
SeikoProspex Sea
MSRP $1,100
Rallygraf Alpine Cup Series
YemaRallygraf Alpine Cup Series
MSRP $449

At a glance

13 of 29 specs differ
Diameter
Prospex Sea41.3mm
Rallygraf Alpine Cup Series39mm
Power Reserve
Prospex Sea72h
Rallygraf Alpine Cup Series40h
Water Resistance
Prospex Sea300m
Rallygraf Alpine Cup Series50m
MSRP
Prospex Sea$1,100
Rallygraf Alpine Cup Series$449

Full specifications

Case

6 specs
Category
Diver
Chronograph
Diameter
41.3mm
39mm
Thickness
12.5mm
10.2mm
Lug-to-Lug
48.2mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
50m

Crystal & Dial

2 specs
AR Coating
Anti-reflective coating on inner surface
Inner
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
$449

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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 Alpine Cup Series

The Yema Rallygraf Alpine Cup Series is widely praised for its retro-modern aesthetic, crisp white dial, and excellent lume, with owners highlighting its great value at $549 and the clever integration of a perforated design into its five-link bracelet. Reviewers and owners alike note its ideal 39mm case proportions and thin profile, enhancing wearability. However, the use of a K1 mineral crystal instead of sapphire is flagged as a drawback, and some community members find the Seiko VK64 meca-quartz movement overpriced for its features, particularly the 24-hour subdial. On balance, owners and reviewers rate the Yema Rallygraf Alpine Cup Series highly for its strong vintage-inspired design and wearability at its price point.

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