Seiko Cal. 6664 - 331

Released in 1990, the Cal. 6664 with design code 331 was part of Seiko's domestic market collection. It features a Cream dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-7800fa0a6049]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

12.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

24j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1990

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