Nezumi Studios BaleinevsSeiko Prospex Alpinist

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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.

Nezumi Studios Baleine at true scale

Baleine

Seiko Prospex Alpinist at true scale

Prospex Alpinist

Diameter

40mm

38mm

Lug-to-Lug

47mm

46mm

lowest

Thickness

12.1mm

lowest

12.9mm

Water Resistance

200m

200m

Power Reserve

42h

70h

highest

MSRP

$821

$503

lowest

Movement

Miyota 9039

Seiko 6R35

Case

4 specs
Diameter
40mm
38mm
Thickness
12.1mm
12.9mm
Lug-to-Lug
47mm
46mm
Lug Width
20mm
n/a

Crystal & Dial

2 specs
Dial Color
Black
n/a
Lume
Super-LumiNova
LumiBrite

Movement

3 specs
Caliber
Miyota 9039
Seiko 6R35
Power Reserve
42hh
70h
Complications
None
Date

Pricing

1 specs
MSRP
$821
$503
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Reviews

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

Nezumi Studios Baleine

Owners widely praise the Nezumi Studios Baleine for its stylish design updates, comfortable 40mm case size, and the soft feel of its strap, with one owner noting its striking appearance garners significant attention. Reviewers highlight its exceptional value, with the automatic version priced competitively, and appreciate the coin-edged bezel action. The watch features a boxed sapphire crystal, signed crown, buckle, and case back, and a textured matte black dial with applied numerals filled with warm-toned lume. Accuracy figures for the Miyota 9039 movement are stated as -10/+30 seconds per day, though actual performance is expected to be better, with one owner reporting initial fast running that settled. Some owners find the 40mm size ideal, while one wished for a smaller case. The gold DLC coating is a matter of personal preference, though it is acknowledged to be eye-catching. The included leather strap did not hold up well to sunscreen for one owner.

From video reviewers

The cohesive, original vintage-inspired design is the primary strength. Lume performance is a weakness.

Seiko Prospex Alpinist

Owners widely praise the Seiko Prospex Alpinist for its excellent 38mm case size and versatile design, making it a capable everyday and business-casual watch. The dark green sunburst dial is a standout feature, described as dynamic and beautifully textured. Its character is further enhanced by the compass bezel and gold indices, and it is considered a great "GADA" (Go Anywhere, Do Anything) watch and a "strap monster" adaptable to various bands. One owner notes the gold tone is less convincing than solid gold alternatives. Overall, owners rate the Seiko Prospex Alpinist highly for its appealing design and wearability at the price point.