Seiko Cal. 6634 - 618

The Seiko 6634-618 represents an important milestone in Seiko's 1978 lineup. Powered by the 6634 caliber with 30j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-0ade91c0f624]

Also known as: Shogun

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

White

Jewels

30j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1978

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