Seiko Cal. 5687 - 306

Released in 1984, the Cal. 5687 with design code 306 was part of Seiko's domestic market collection. It features a Black dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-39428aed163a]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1984

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