Seiko Cal. 4528 - 391

This Spring Drive model from 1992 features a 37mm PVD Black case. It features a Green dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-acee3ce1dfef]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1992

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