Seiko Cal. 3890 - 648

The Seiko 3890-648 represents an important milestone in Seiko's 1981 lineup. It features a Green dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-fa4a6b5aff37]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

36j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1981

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