Seiko Cal. 5688 - 257

The Seiko 5688-257 represents an important milestone in Seiko's 1983 lineup. It features a Green dial protected by a Acrylic crystal and offers 130m of water resistance. [seikata-wm-d8897297418f]

Also known as: Bullhead, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

25j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1983

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