Seiko Cal. 3890 - 520

The Seiko 3890-520 represents an important milestone in Seiko's 1978 lineup. It features a Cream dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-f9ce9615b9c0]

Also known as: Helmet, UFO

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

17j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1978

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