Seiko Cal. 5688 - 609

Released in 1988, the Cal. 5688 with design code 609 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-8d82cec9fd44]

Also known as: Helmet, Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1988

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