Seiko Cal. 4527 - 666

The Seiko 4527-666 represents an important milestone in Seiko's 1986 lineup. It features a Black dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-690566b589fc]

Also known as: Sumo, Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1986

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