Seiko Cal. 6643 - 728

This Automatic model from 1987 features a 39mm PVD Black case. It features a Champagne dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-a68e8a7d90b7]

Also known as: Samurai

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

23j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1987

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