Seiko Cal. 6643 - 164

Released in 1990, the Cal. 6643 with design code 164 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-d0e7731057ab]

Also known as: Shogun, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1990

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