Seiko Cal. 6618 - 727

The Seiko 6618-727 represents an important milestone in Seiko's 1989 lineup. It features a Black dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-51265b63c62d]

Also known as: Helmet, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1989

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