Seiko Cal. 5687 - 780

The Seiko 5687-780 represents an important milestone in Seiko's 1992 lineup. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-621ff3ee88b8]

Also known as: Emperor, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1992

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