Seiko Cal. 6648 - 660

The Seiko 6648-660 represents an important milestone in Seiko's 1970 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-8f2b0f50d5c9]

Also known as: Turtle, UFO

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1970

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