Seiko Cal. 6644 - 563

The Seiko 6644-563 represents an important milestone in Seiko's 1985 lineup. It features a White dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-5b3c13a91004]

Also known as: Bullhead, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

30j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1985

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