Seiko Cal. 0770 - 527

This Spring Drive model from 1988 features a 39mm PVD Black case. It features a Green dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-2ce71bf4bfd7]

Also known as: Helmet, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1988

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