Seiko Cal. 5644 - 989

This Spring Drive model from 1986 features a 35mm Two-Tone case. It features a White dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-27c782346c3d]

Also known as: Monster, Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1986

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