Seiko Cal. 6646 - 639

This Kinetic model from 1988 features a 46mm Two-Tone case. It features a Navy dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-a778ada50a66]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1988

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