Seiko Prospex SeavsZelos Helmsman 3

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Seiko Prospex Sea at true scale

Prospex Sea

Zelos Helmsman 3 at true scale

Helmsman 3

Diameter

41.3mm

40mm

Lug-to-Lug

48.2mm

n/a

Thickness

12.5mm

11.5mm

lowest

Water Resistance

300m

highest

200m

Power Reserve

72h

n/a

MSRP

$1,100

$529

lowest

Movement

Seiko 6R55

Miyota 9015

Case

5 specs
Diameter
41.3mm
40mm
Thickness
12.5mm
11.5mm
Lug-to-Lug
48.2mm
n/a
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Anti-reflective coating on inner surface
n/a
Dial Color
n/a
SS - Frost
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

3 specs
Caliber
Seiko 6R55
Miyota 9015
Power Reserve
72h
0h
Jewels
24
0

Pricing

1 specs
MSRP
$1,100
$529
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko Prospex Sea

Owners and reviewers widely praise the Seiko Prospex Sea for its robust build quality and fair price, with many noting its comfortable silicone strap. Some owners find the watch's size, thickness, and weight to be uncomfortable for smaller wrists, while others consider the size perfect. The consensus is that the Seiko Prospex Sea offers excellent value and build quality for its price.

Zelos Helmsman 3

Owners widely praise the Zelos Helmsman 3 for its exceptional finishing and polishing on the titanium case, with some noting it feels nicer than previous models. The unique Titanium Crystalline Dial and Damascus Titanium dial are frequently highlighted as aesthetically pleasing and head-turning features, especially considering the price point. The brushed beads of rice bracelet is described as fitting well, and the on-the-fly clasp is considered amazing. Lume is also noted as great, with lumed crowns being a positive observation. However, some owners report the watch can feel top-heavy with sharp edges, making it uncertain as a daily driver for some. The meteorite bezel is seen by one owner as not adding significant value, and the stock strap's keepers and stitching were considered to detract from the watch's appearance.

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