Seiko Cal. 6338 - 678

Released in 1973, the Cal. 6338 with design code 678 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-a72102eb89ae]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1973

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