Seiko Cal. 6378 - 657

The Seiko 6378-657 represents an important milestone in Seiko's 1972 lineup. It features a Champagne dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-57ac4f3ee7d6]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

25j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1972

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