Seiko Cal. 6278 - 668

The Seiko 6278-668 represents an important milestone in Seiko's 1971 lineup. It features a White dial protected by a Hardlex crystal and offers 70m of water resistance. [seikata-wm-6182d89dd22e]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

29j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1971

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