Seiko Cal. 5643 - 765

The Seiko 5643-765 represents an important milestone in Seiko's 1984 lineup. With its 19mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-81f15ecfe1d9]

Also known as: Monster, Silverwave

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1984

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