Seiko Cal. 5668 - 645

Released in 1968, the Cal. 5668 with design code 645 was part of Seiko's domestic market collection. It features a Cream dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-13fc42099f63]

Also known as: UFO, Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1968

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