Seiko Cal. 3890 - 654

The Seiko 3890-654 represents an important milestone in Seiko's 1965 lineup. It features a Green dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-374498cd77c7]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1965

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