Seiko Cal. 6648 - 835

The Seiko 6648-835 represents an important milestone in Seiko's 1970 lineup. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-dcea4b8bf1c9]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1970

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