Seiko Cal. 6618 - 641

The Seiko 6618-641 represents an important milestone in Seiko's 1977 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-de47246bc19c]

Also known as: Pogue, Bellmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

42mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1977

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