Seiko Cal. 0778 - 665

Released in 1974, the Cal. 0778 with design code 665 was part of Seiko's domestic market collection. It features a Black dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-6ea4d9f5cf33]

Also known as: Helmet, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

18j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1974

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