Seiko Cal. 6638 - 609

The Seiko 6638-609 represents an important milestone in Seiko's 1981 lineup. It features a Navy dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-1190f123d5ad]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1981

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