Seiko Cal. 6388 - 621

Released in 1972, the Cal. 6388 with design code 621 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-bac380bdb5bb]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

20j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1972

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