Seiko Cal. 6651 - 442

The Seiko 6651-442 represents an important milestone in Seiko's 1966 lineup. It features a Green dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-f6ccb116aa8f]

Also known as: Tuna, Silverwave

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1966

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