Seiko Cal. 5646 - 536

The Seiko 5646-536 represents an important milestone in Seiko's 1978 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-07ca1f5e2ee5]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1978

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