Seiko Cal. 6640 - 483

The Seiko 6640-483 represents an important milestone in Seiko's 1970 lineup. It features a Cream dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-ed8e4b56af6d]

Also known as: Golden Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1970

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