Seiko Cal. 6618 - 720

The Seiko 6618-720 represents an important milestone in Seiko's 1979 lineup. It features a Cream dial protected by a Acrylic crystal and offers 140m of water resistance. [seikata-wm-b704df7b9f53]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1979

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