Seiko Cal. 6689 - 381

The Seiko 6689-381 represents an important milestone in Seiko's 1979 lineup. It features a Black dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-6cd3b24789af]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

15.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1979

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