Seiko Cal. 6378 - 577

The Seiko 6378-577 represents an important milestone in Seiko's 1973 lineup. It features a Cream dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-5663fa16cb5a]

Also known as: Silverwave

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Cream

Jewels

20j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1973

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