Seiko Cal. 5646 - 200

The Seiko 5646-200 represents an important milestone in Seiko's 1970 lineup. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-ff305319ed31]

Also known as: Bullhead, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1970

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