Seiko Cal. 6378 - 661

The 6378-661 is a sought-after Quartz piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-41debfa7de59]

Also known as: Rally, Navigator

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Champagne

Jewels

34j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1977

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